Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference.
- Status
- historicalU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B period and source notes.
- Period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Column headers.
- Prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Column headers.
- Generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table title, producer sector headers and source notes.
- All generation
- 133229.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column1.
- Prior all generation
- 129115.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column2.
- Published generation change
- 3.20 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column3.
- Utility generation
- 5193.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column4.
- Prior utility generation
- 2196.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column5.
- Ipp generation
- 126342.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column6.
- Prior ipp generation
- 125232.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column7.
- Commercial generation
- 281.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column8.
- Prior commercial generation
- 279.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column9.
- Industrial generation
- 1413.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column10.
- Prior industrial generation
- 1408.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Locator: Table1.3.B Illinois row; column11.
- Gas generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table title, producer sector headers and source notes.
- Gas period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Column headers.
- Gas prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Column headers.
- Gas all generation
- 22924.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column1.
- Gas prior all generation
- 20156.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column2.
- Gas published generation change
- 13.70 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column3.
- Gas utility generation
- 3187.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column4.
- Gas prior utility generation
- 602.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column5.
- Gas ipp generation
- 19021.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column6.
- Gas prior ipp generation
- 18782.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column7.
- Gas commercial generation
- 265.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column8.
- Gas prior commercial generation
- 263.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column9.
- Gas industrial generation
- 451.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column10.
- Gas prior industrial generation
- 509.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Natural gas fuel only, not all energy sources, gas consumption or gas production. State generation does not establish the fuel mix delivered to a data center, renewable matching or marginal emissions. Locator: Table1.7.B Illinois row; column11.
- Nuclear generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table title, producer sector headers and source notes.
- Nuclear period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Column headers.
- Nuclear prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Column headers.
- Nuclear all generation
- 65151.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column1.
- Nuclear prior all generation
- 66176.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column2.
- Nuclear published generation change
- -1.50 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column3.
- Nuclear utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column4.
- Nuclear prior utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column5.
- Nuclear ipp generation
- 65151.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column6.
- Nuclear prior ipp generation
- 66176.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column7.
- Nuclear commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column8.
- Nuclear prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column9.
- Nuclear industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column10.
- Nuclear prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Nuclear energy generation only, not installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no plant or nuclear capacity; source percentage markers stay unknown rather than computed from rounded values. Locator: Table1.9.B Illinois row; column11.
- Coal generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table title, producer sector headers and source notes.
- Coal period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Column headers.
- Coal prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Column headers.
- Coal all generation
- 19302.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column1.
- Coal prior all generation
- 20922.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column2.
- Coal published generation change
- -7.70 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column3.
- Coal utility generation
- 979.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column4.
- Coal prior utility generation
- 1037.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column5.
- Coal ipp generation
- 17673.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column6.
- Coal prior ipp generation
- 19255.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column7.
- Coal commercial generation
- 10.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column8.
- Coal prior commercial generation
- 11.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column9.
- Coal industrial generation
- 639.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column10.
- Coal prior industrial generation
- 618.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Coal generation only, not coal receipts or fuel consumption, installed capacity, a plant inventory, power delivered to data centers or an emissions calculation. Published zero generation is not proof of no coal plant or capacity; unknown percentages stay unknown. Locator: Table1.4.B Illinois row; column11.
- Wind generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table title, producer sector headers and source notes.
- Wind period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Column headers.
- Wind prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Column headers.
- Wind all generation
- 17656.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column1.
- Wind prior all generation
- 16523.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column2.
- Wind published generation change
- 6.90 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column3.
- Wind utility generation
- 480.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column4.
- Wind prior utility generation
- 5.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column5.
- Wind ipp generation
- 17173.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column6.
- Wind prior ipp generation
- 16515.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column7.
- Wind commercial generation
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column8.
- Wind prior commercial generation
- 3.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column9.
- Wind industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column10.
- Wind prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Wind generation only, not installed capacity, a turbine inventory, renewable procurement, hourly matching, data center delivered power or avoided emissions. Published zero generation does not prove no wind capacity. Locator: Table1.14.B Illinois row; column11.
- Hydro generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table title, producer sector headers and source notes.
- Hydro period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Column headers.
- Hydro prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Column headers.
- Hydro all generation
- 66.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column1.
- Hydro prior all generation
- 65.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column2.
- Hydro published generation change
- 0.20 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column3.
- Hydro utility generation
- 35.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column4.
- Hydro prior utility generation
- 36.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column5.
- Hydro ipp generation
- 31.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column6.
- Hydro prior ipp generation
- 29.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column7.
- Hydro commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column8.
- Hydro prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column9.
- Hydro industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column10.
- Hydro prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Conventional hydroelectric power only, excluding pumped storage. Not installed capacity, a dam inventory, reservoir levels, water withdrawal or availability, data center delivered power, renewable procurement or avoided emissions. Published zero generation is not proof of no dam or hydroelectric capacity. Locator: Table1.10.B Illinois row; column11.
- Pumped storage generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table title, producer sector headers and source notes.
- Pumped storage period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Column headers.
- Pumped storage prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Column headers.
- Pumped storage all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column1.
- Pumped storage prior all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column2.
- Pumped storage published generation change
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column3.
- Pumped storage utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column4.
- Pumped storage prior utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column5.
- Pumped storage ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column6.
- Pumped storage prior ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column7.
- Pumped storage commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column8.
- Pumped storage prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column9.
- Pumped storage industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column10.
- Pumped storage prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Pumped storage hydroelectric power only, separate from conventional hydro. Negative net generation retains the source sign and means plant electricity use exceeds gross generation; it is not negative storage capacity or gross discharged energy. Not storage capacity, round trip efficiency, water withdrawal or availability, data center delivered power or renewable matching. Zero does not prove no storage capacity. Locator: Table1.12.B Illinois row; column11.
- Solar pv period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Column headers.
- Solar pv prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Column headers.
- Solar pv generation basis
- Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table title, producer sector headers and source notes.
- Solar pv all estimated generation
- 9766.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column1.
- Solar pv prior all estimated generation
- 6440.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column2.
- Solar pv published generation change
- 51.60 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column3.
- Solar pv utility scale generation
- 7627.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column4.
- Solar pv utility scale prior generation
- 4839.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column5.
- Solar pv estimated small scale generation
- 2139.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column6.
- Solar pv estimated small scale prior generation
- 1601.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column7.
- Solar pv electric utilities generation
- 447.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column8.
- Solar pv electric utilities prior generation
- 465.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column9.
- Solar pv independent producers generation
- 7164.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column10.
- Solar pv independent producers prior generation
- 4368.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column11.
- Solar pv commercial estimated total generation
- 943.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column12.
- Solar pv commercial estimated total prior generation
- 636.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column13.
- Solar pv commercial utility scale generation
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column14.
- Solar pv commercial utility scale prior generation
- 1.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column15.
- Solar pv commercial estimated small scale generation
- 940.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column16.
- Solar pv commercial estimated small scale prior generation
- 635.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column17.
- Solar pv industrial estimated total generation
- 26.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column18.
- Solar pv industrial estimated total prior generation
- 16.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column19.
- Solar pv industrial utility scale generation
- 13.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column20.
- Solar pv industrial utility scale prior generation
- 6.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column21.
- Solar pv industrial estimated small scale generation
- 13.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column22.
- Solar pv industrial estimated small scale prior generation
- 11.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column23.
- Solar pv residential estimated small scale generation
- 1186.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column24.
- Solar pv residential estimated small scale prior generation
- 955.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Solar photovoltaic net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total, in thousand megawatthours. All sector estimates include utility and small scale facilities; separate utility scale, estimated small scale and residential estimates retain their own scopes. Commercial and industrial sectors classify generators, not electricity customers. Not solar thermal, installed capacity, electricity sales, data center delivered power, renewable procurement, hourly matching or avoided emissions. Published zero does not prove no photovoltaic capacity. NM remains unknown, not zero. Independent rounding and published percentage changes are retained, never forced to sum or recomputed. Negative net generation means plant electricity use exceeds gross generation. Locator: Table1.17.B Illinois row; column25.
- Solar thermal generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table title, producer sector headers and source notes.
- Solar thermal period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Column headers.
- Solar thermal prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Column headers.
- Solar thermal all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column1.
- Solar thermal prior all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column2.
- Solar thermal published generation change
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column3.
- Solar thermal utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column4.
- Solar thermal prior utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column5.
- Solar thermal ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column6.
- Solar thermal prior ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column7.
- Solar thermal commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column8.
- Solar thermal prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column9.
- Solar thermal industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column10.
- Solar thermal prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Solar thermal generation only, separate from solar photovoltaic and small scale photovoltaic estimates. Not installed capacity, solar heat consumption, electricity delivered to data centers, renewable procurement, hourly matching or avoided emissions. Zero generation is not proof of no solar thermal capacity or projects. Locator: Table1.18.B Illinois row; column11.
- Other energy generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table title, producer sector headers and source notes.
- Other energy period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Column headers.
- Other energy prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Column headers.
- Other energy all generation
- 145.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column1.
- Other energy prior all generation
- 141.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column2.
- Other energy published generation change
- 2.60 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column3.
- Other energy utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column4.
- Other energy prior utility generation
- -0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column5.
- Other energy ipp generation
- -4.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column6.
- Other energy prior ipp generation
- -8.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column7.
- Other energy commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column8.
- Other energy prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column9.
- Other energy industrial generation
- 149.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column10.
- Other energy prior industrial generation
- 149.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Energy Sources is the source table category, not a geothermal-only or renewable-only fuel designation. No disaggregation into individual fuel technologies, plant identity, waste treatment, emissions or eligibility is inferred. Not installed capacity, electricity delivered to data centers, renewable procurement or hourly matching. Zero generation does not prove no facilities or capacity. Locator: Table1.13.B Illinois row; column11.
- Geothermal generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table title, producer sector headers and source notes.
- Geothermal period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Column headers.
- Geothermal prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Column headers.
- Geothermal all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column1.
- Geothermal prior all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column2.
- Geothermal published generation change
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column3.
- Geothermal utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column4.
- Geothermal prior utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column5.
- Geothermal ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column6.
- Geothermal prior ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column7.
- Geothermal commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column8.
- Geothermal prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column9.
- Geothermal industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column10.
- Geothermal prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Geothermal electricity generation only, separate from the Other Energy Sources aggregate and solar thermal. Not installed capacity, geothermal heating/cooling, subsurface resources, a well or plant inventory, permit approval, data center delivered electricity, procurement, hourly matching or emissions. Published zero does not prove no geothermal resource, project or capacity. Locator: Table1.16.B Illinois row; column11.
- Biomass generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table title, producer sector headers and source notes.
- Biomass period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Column headers.
- Biomass prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Column headers.
- Biomass all generation
- 159.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column1.
- Biomass prior all generation
- 141.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column2.
- Biomass published generation change
- 12.90 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column3.
- Biomass utility generation
- 54.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column4.
- Biomass prior utility generation
- 46.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column5.
- Biomass ipp generation
- 105.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column6.
- Biomass prior ipp generation
- 96.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column7.
- Biomass commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column8.
- Biomass prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column9.
- Biomass industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column10.
- Biomass prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Biomass electricity generation is the source aggregate category, not individual fuel feedstock consumption, a plant inventory, sustainable sourcing certification, a permit or renewable eligibility determination. Not installed capacity, carbon neutrality, avoided emissions, data center delivered electricity, procurement or hourly matching. Published zero does not prove no biomass facilities or capacity. Locator: Table1.15.B Illinois row; column11.
- Petroleum liquids generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table title, producer sector headers and source notes.
- Petroleum liquids period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Column headers.
- Petroleum liquids prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Column headers.
- Petroleum liquids all generation
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column1.
- Petroleum liquids prior all generation
- 24.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column2.
- Petroleum liquids published generation change
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column3.
- Petroleum liquids utility generation
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column4.
- Petroleum liquids prior utility generation
- 5.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column5.
- Petroleum liquids ipp generation
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column6.
- Petroleum liquids prior ipp generation
- 19.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column7.
- Petroleum liquids commercial generation
- 0.09 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column8.
- Petroleum liquids prior commercial generation
- 0.14 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column9.
- Petroleum liquids industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column10.
- Petroleum liquids prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Liquids electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.5.B Illinois row; column11.
- Petroleum coke generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table title, producer sector headers and source notes.
- Petroleum coke period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Column headers.
- Petroleum coke prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Column headers.
- Petroleum coke all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column1.
- Petroleum coke prior all generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column2.
- Petroleum coke published generation change
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column3.
- Petroleum coke utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column4.
- Petroleum coke prior utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column5.
- Petroleum coke ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column6.
- Petroleum coke prior ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column7.
- Petroleum coke commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column8.
- Petroleum coke prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column9.
- Petroleum coke industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column10.
- Petroleum coke prior industrial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Petroleum Coke electricity generation only, separate from the other petroleum category, coal and natural gas. Not fuel consumption, refinery output, stocks, fuel mass or heat input, installed generator capacity, emergency backup runtime, a facility inventory, data center delivered power or emissions. Published zero is not proof of no fuel or generators. Locator: Table1.6.B Illinois row; column11.
- Other fossil gas generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table title, producer sector headers and source notes.
- Other fossil gas period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Column headers.
- Other fossil gas prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Column headers.
- Other fossil gas all generation
- 161.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column1.
- Other fossil gas prior all generation
- 126.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column2.
- Other fossil gas published generation change
- 27.00 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column3.
- Other fossil gas utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column4.
- Other fossil gas prior utility generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column5.
- Other fossil gas ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column6.
- Other fossil gas prior ipp generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column7.
- Other fossil gas commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column8.
- Other fossil gas prior commercial generation
- 0.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column9.
- Other fossil gas industrial generation
- 161.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column10.
- Other fossil gas prior industrial generation
- 126.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Other Fossil Gas electricity generation is the source aggregate category, separate from Natural Gas and Other Energy Sources. No individual gas composition or technology disaggregation inferred. Not gas production, fuel volume or heat input, pipeline supply, installed capacity, facility inventory, emergency backup runtime, data center delivered power or emissions. Published zero does not prove no gas resource or generators. Locator: Table1.8.B Illinois row; column11.
- Nonhydro generation basis
- Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects.U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table title, producer sector headers and source notes.
- Nonhydro period
- January through August 2026U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Column headers.
- Nonhydro prior period
- January through August 2025U.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Column headers.
- Nonhydro all generation
- 25442.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column1.
- Nonhydro prior all generation
- 21503.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column2.
- Nonhydro published generation change
- 18.30 percentU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column3.
- Nonhydro utility generation
- 981.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column4.
- Nonhydro prior utility generation
- 515.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column5.
- Nonhydro ipp generation
- 24442.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column6.
- Nonhydro prior ipp generation
- 20979.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column7.
- Nonhydro commercial generation
- Not establishedU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column8.
- Nonhydro prior commercial generation
- 4.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column9.
- Nonhydro industrial generation
- 13.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column10.
- Nonhydro prior industrial generation
- 6.00 thousand MWhU.S. Energy Information Administration. Source: October 23, 2026. Checked: October 27, 2026.
Utility scale facility net generation by state and producer sector, January through August2026 preliminary versus January through August2025 final; cumulative year to date, not August alone or a full annual total. Energy is reported in thousand megawatthours, not MW capacity, electricity sales, customer consumption, grid reliability or data center demand. Commercial and industrial here classify generators, not electricity customers. Small scale generation is outside this table. NM means not meaningful due to large relative standard error or excessive percentage change, not zero. Negative net generation means plant use exceeds gross generation. Components and percentage changes retain independent rounding; no facility association or causal data center inference. Renewable Sources Excluding Hydroelectric is a utility scale aggregate, overlapping component wind, biomass, geothermal and solar generation; never add it to those component tables as a separate fuel. Small scale photovoltaic estimates are outside this table. Not all renewable generation, installed capacity, renewable eligibility or procurement, hourly matching, data center delivered power or avoided emissions. Published zero is not proof of no renewable resources or projects. Locator: Table1.11.B Illinois row; column11.