{"schema_version":1,"layer":"air","reviewed_on":"2026-10-28","coverage_note":"Generator counts documented in selected permits, not a complete state or national count. A construction or operation permit does not prove equipment installation, operating hours, measured emissions or a data center opening.","items":[{"id":"air-or-pdx4-historical-20181203","kind":"generator_permit","subject":"Oregon PDX4 historical December 2018 generator permit","state_codes":["or"],"scope":"Historical issued permit with stated December 2023 expiration and conditional continuation language. Equipment table includes proposed units and replacement alternatives. Current authority, installed equipment and operation remain unknown.","fields":{"status":{"value":"permitted","source_ids":["or-pdx4-permit-20181203"],"scope":"A permit was issued in 2018. This status does not establish current authority after the stated expiration.","locator":"Page 1 issued permit"},"historical_permit_basis":{"value":"Historical issued permit","source_ids":["or-pdx4-permit-20181203"],"scope":"Dated permit documentation, not current installed equipment or renewed authority.","locator":"Pages 1 and 14"},"permit_identifier":{"value":"25-0008-ST-01","source_ids":["or-pdx4-permit-20181203"],"scope":"Exact historical permit identifier.","locator":"Page headers"},"issued_on":{"value":"2018-12-03","source_ids":["or-pdx4-permit-20181203"],"scope":"Actual permit issue date, distinct from the 2017 application receipt and 2011 land use finding.","locator":"Page 1 signature date"},"stated_expires_on":{"value":"2023-12-01","source_ids":["or-pdx4-permit-20181203"],"scope":"Printed expiration date. No automatic renewal, cessation or current violation is inferred.","locator":"Page headers and condition 12.10"},"reported_location":{"value":"PDX4, 79539 Rippee Road, Boardman, Oregon","source_ids":["or-pdx4-permit-20181203"],"scope":"Permit location issued to Vadata Inc. No independent Atlas building or current ownership join made.","locator":"Page 1"},"generator_count":{"value":96,"source_ids":["or-pdx4-permit-20181203"],"scope":"Calculated from the same Table 1 total column: 3 plus 3 plus 1 plus 1 plus 7 plus 81 plus 0. Historical approved table scope, not a current installation count. Existing and proposed columns are not added again.","locator":"Page 6 Table 1 total column and footnotes","unit":"generators","measurement_role":"permitted_equipment"},"equipment_scope":{"value":"Table totals cover three 750 kW, three 800 kW, one 1000 kW, one 1825 kW, seven 2000 kW and 81 units of 2500 kW, with zero Type G units in the replacement scenario.","source_ids":["or-pdx4-permit-20181203"],"scope":"Nameplate ratings and historical permitted table totals. No grid load or aggregate operating MW inferred.","locator":"Page 6 Table 1"},"replacement_scope":{"value":"The table describes 49 existing and 32 proposed Type F units. Three existing Type G units may be replaced by three Type E units, giving seven Type E and zero Type G in the future total columns.","source_ids":["or-pdx4-permit-20181203"],"scope":"The replacement is conditional, not evidence it happened. Proposed means deferred or not on site as of April 2, 2018. Counting both the existing Type G and its replacement Type E would double count the alternative.","locator":"Page 6 Table 1 and footnotes"},"fuel":{"value":"Ultra low sulfur diesel, ASTM Grade 2 distillate with sulfur no greater than 0.0015 percent by weight.","source_ids":["or-pdx4-permit-20181203"],"scope":"Historical permit fuel requirement, not an observed purchase or fuel use.","locator":"Page 3 condition 1.6"},"historical_fuel_limit":{"value":"758,870 gallons for all emergency and nonemergency engine operations over a rolling twelve month period.","source_ids":["or-pdx4-permit-20181203"],"scope":"As written in the 2018 permit. This is a permitted ceiling, not actual consumption or a current independently verified allowance.","locator":"Page 4 condition 1.7"},"historical_hour_limits":{"value":"The 2018 text sets a 100 hour calendar year combined allowance, with a 50 hour nonemergency subset counted within it. It states no hour limit for emergency situations.","source_ids":["or-pdx4-permit-20181203"],"scope":"The fifty hour subset is not added to make 150 hours. These are dated permit terms, not a determination of current federal rules; the separate fuel ceiling covers all operations as written.","locator":"Pages 4 and 5 condition 2.5"},"historical_emission_scope":{"value":"Plant site emission limits apply to nonemergency operations including commissioning over rolling twelve month periods.","source_ids":["or-pdx4-permit-20181203"],"scope":"These limits are separate from actual emergency emissions, measured emissions and the all operation fuel ceiling. No emissions total is calculated.","locator":"Pages 7 and 8 conditions 4.1, 4.2 and 5.2"},"continuation_conditions":{"value":"The permit describes continued authority if a timely complete renewal or Title V application is submitted, or another authorizing permit is issued before expiration. It also describes conditional persistence of earlier requirements.","source_ids":["or-pdx4-permit-20181203"],"scope":"These provisions do not prove that any condition was met. Current renewal, continuation or replacement evidence has not been reviewed.","locator":"Page 14 condition 12.10"},"current_permit_validity":{"value":null,"source_ids":["or-pdx4-permit-20181203"],"scope":"No current renewal, timely complete application, continuation or replacement permit is established.","locator":"Historical permit review boundary","unknown_reason":"No current renewal, timely complete application, continuation or replacement permit is established."},"actual_installed_equipment":{"value":null,"source_ids":["or-pdx4-permit-20181203"],"scope":"No actual installation, completed replacement or current equipment inventory is established from this historical permit.","locator":"Historical permit review boundary","unknown_reason":"No actual installation, completed replacement or current equipment inventory is established from this historical permit."},"actual_generation":{"value":null,"source_ids":["or-pdx4-permit-20181203"],"scope":"No actual operating hours or generated electricity is established.","locator":"Historical permit review boundary","unknown_reason":"No actual operating hours or generated electricity is established."},"measured_emissions":{"value":null,"source_ids":["or-pdx4-permit-20181203"],"scope":"No measured emissions or actual compliance conclusion is established.","locator":"Historical permit review boundary","unknown_reason":"No measured emissions or actual compliance conclusion is established."},"atlas_record_id":{"value":null,"source_ids":["or-pdx4-permit-20181203"],"scope":"No independently verified building or campus identity join is made.","locator":"Historical permit review boundary","unknown_reason":"No independently verified building or campus identity join is made."}}},{"id":"air-egrid-state-2023-or","subject":"Oregon historical2023 electricity-generation emissions","kind":"emissions_context","state_codes":["or"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","fields":{"status":{"value":"historical","source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 Data Year column"},"egrid_report_year":{"value":"2023","source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 YEAR column"},"egrid_state_fips":{"value":"41","source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 FIPSST column"},"egrid_state_basis":{"value":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 labels,codes,units and review scope"},"egrid_annual_net_generation":{"value":61683300.013,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STNGENAN (State annual net generation (MWh))","unit":"MWh","measurement_role":"reported_egrid_annual_net_generation","source_token":"61683300.012999997"},"egrid_annual_nox_emissions":{"value":19715.185,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STNOXAN (State annual NOx emissions (tons))","unit":"tons","measurement_role":"reported_egrid_annual_nox_emissions","source_token":"19715.185000000001"},"egrid_annual_so2_emissions":{"value":622.799,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STSO2AN (State annual SO2 emissions (tons))","unit":"tons","measurement_role":"reported_egrid_annual_so2_emissions","source_token":"622.79899999999998"},"egrid_annual_co2_emissions":{"value":11231359.308,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STCO2AN (State annual CO2 emissions (tons))","unit":"tons","measurement_role":"reported_egrid_annual_co2_emissions","source_token":"11231359.308"},"egrid_nox_total_output_rate":{"value":0.639,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STNOXRTA (State annual NOx total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_nox_total_output_rate","source_token":"0.63900000000000001"},"egrid_so2_total_output_rate":{"value":0.02,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STSO2RTA (State annual SO2 total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_so2_total_output_rate","source_token":"0.02"},"egrid_co2_total_output_rate":{"value":364.162,"source_ids":["epa-egrid2023-states-rev2"],"scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.","locator":"ST23 OR row 40, STCO2RTA (State annual CO2 total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_co2_total_output_rate","source_token":"364.16199999999998"},"egrid_annual_ch4_emissions_lb":{"value":819377.706,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STCH4AN (State annual CH4 emissions (lbs))","unit":"lbs","measurement_role":"reported_egrid_annual_ch4_emissions","source_token":"819377.70600000001"},"egrid_annual_co2e_emissions":{"value":11256069.27,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STCO2EQA (State annual CO2 equivalent emissions (tons))","unit":"tons","measurement_role":"reported_egrid_annual_co2e_emissions","source_token":"11256069.27"},"egrid_annual_n2o_emissions_lb":{"value":99914.513,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STN2OAN (State annual N2O emissions (lbs))","unit":"lbs","measurement_role":"reported_egrid_annual_n2o_emissions","source_token":"99914.513000000006"},"egrid_ozone_season_nox_total_output_rate":{"value":0.58,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STNOXRTO (State ozone season NOx total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_ozone_season_nox_total_output_rate","source_token":"0.57999999999999996"},"egrid_extended_basis":{"value":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 field labels,report year and annual-versus-ozone-season units"},"egrid_ozone_season_nox_emissions":{"value":7496.78,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STNOXOZ (State ozone season NOx emissions (tons))","unit":"tons","measurement_role":"reported_egrid_ozone_season_nox_emissions","source_token":"7496.78"},"egrid_co2e_total_output_rate":{"value":364.963,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STC2ERTA (State annual CO2 equivalent total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_co2e_total_output_rate","source_token":"364.96300000000002"},"egrid_ch4_total_output_rate":{"value":0.013,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STCH4RTA (State annual CH4 total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_ch4_total_output_rate","source_token":"1.2999999999999999E-2"},"egrid_n2o_total_output_rate":{"value":0.002,"source_ids":["epa-egrid2023-states-rev2"],"scope":"Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.","locator":"ST23 OR row 40, STN2ORTA (State annual N2O total output emission rate (lb/MWh))","unit":"lb per MWh","measurement_role":"reported_egrid_n2o_total_output_rate","source_token":"2E-3"}}},{"id":"air-eia-state-emissions-2025-or","kind":"emissions_context","subject":"Oregon historical power and useful thermal emissions2025 and2024","state_codes":["or"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","fields":{"status":{"value":"historical","source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 years2025 and2024"},"eia_emissions_basis":{"value":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 header and methodological notes"},"eia_emissions_co2_2025":{"value":9405.0,"source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 Oregon row;co2;Year 2025","source_token":"9,405","unit":"thousand metric tons","measurement_role":"agency_estimated_generation_and_useful_thermal_emissions"},"eia_emissions_co2_2024":{"value":10351.0,"source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 Oregon row;co2;Year 2024","source_token":"10,351","unit":"thousand metric tons","measurement_role":"agency_estimated_generation_and_useful_thermal_emissions"},"eia_emissions_so2_2025":{"value":4.0,"source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 Oregon row;so2;Year 2025","source_token":"4","unit":"thousand metric tons","measurement_role":"agency_estimated_generation_and_useful_thermal_emissions"},"eia_emissions_so2_2024":{"value":4.0,"source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 Oregon row;so2;Year 2024","source_token":"4","unit":"thousand metric tons","measurement_role":"agency_estimated_generation_and_useful_thermal_emissions"},"eia_emissions_nox_2025":{"value":20.0,"source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 Oregon row;nox;Year 2025","source_token":"20","unit":"thousand metric tons","measurement_role":"agency_estimated_generation_and_useful_thermal_emissions"},"eia_emissions_nox_2024":{"value":22.0,"source_ids":["eia-epa2025-state-emissions"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.","locator":"Table9.5 Oregon row;nox;Year 2024","source_token":"22","unit":"thousand metric tons","measurement_role":"agency_estimated_generation_and_useful_thermal_emissions"}}}],"sources":{"or-pdx4-permit-20181203":{"url":"https://deqonline.deq.state.or.us/AQPermitsonline/25-0008-ST-01_P_2018.PDF","title":"Oregon DEQ PDX4 issued December 2018 air permit","publisher":"Oregon Department of Environmental Quality","published_on":null,"date_note":"Original public posting day is unknown. Actual issue December 3, 2018 and stated expiration December 1, 2023 are separately documented.","checked_at":"2026-10-23T16:24:29.418562+00:00","sha256":"59f87887641741a52b5b983d94728bf18d3db6c8bf17e94043742ea5212b7182","scope":"Full sixteen page issued permit, historical as written in 2018. Table 1 combines existing and proposed equipment with a conditional replacement. Current continuation, replacement permits, actual installation and current federal conditions are not established.","tier":"A","establishes_status":["permitted"]},"epa-egrid2023-states-rev2":{"url":"https://www.epa.gov/system/files/documents/2025-06/egrid2023_data_rev2.xlsx","title":"EPA eGRID2023 revision2 original workbook ST23 state emissions,generation and total output rates","publisher":"U.S. Environmental Protection Agency","published_on":null,"date_note":"Exact workbook publication day not established;2025-06 path is a storage folder,not an exact publication date.2023 is report year,not retrieval year.","checked_at":"2026-10-27T21:05:24.064631+00:00","sha256":"895cd81dd8662406189ad8adf5a2578dcb362cdb5cff7cca81b10ee6bd2447c6","raw_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261023/epa-egrid2023-data-rev2.bin","tier":"A","scope":"EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Download index identifies eGRID2023 revision2;only workbook metadata/shared strings/ST23 entries read,no whole-archive extraction.","establishes_status":["historical"]},"eia-epa2025-state-emissions":{"url":"https://www.eia.gov/electricity/annual/table.php?t=epa_09_05.html","publisher":"U.S. Energy Information Administration","title":"Electric Power Annual Table9.5 state power and CHP emissions2025 and2024","published_on":"2026-10-21","checked_at":"2026-10-28T02:40:42.051795+00:00","sha256":"36e6dbf2164041a56f6985a5fcac8357791d95eb82545bfc542aea095c38d5dd","raw_path":"/Users/shaunwilson/Documents/Data Centers Atlas/build/cache/layers-20261023/eia-epa2025-state-emissions-20261028.html","tier":"A","establishes_status":["historical"],"scope":"EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins."}},"details":[{"id":"air-or-pdx4-historical-20181203","html":"

Oregon PDX4 historical December 2018 generator permit

Historical issued permit with stated December 2023 expiration and conditional continuation language. Equipment table includes proposed units and replacement alternatives. Current authority, installed equipment and operation remain unknown.

Status
permittedOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

A permit was issued in 2018. This status does not establish current authority after the stated expiration. Locator: Page 1 issued permit.

Historical permit basis
Historical issued permitOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Dated permit documentation, not current installed equipment or renewed authority. Locator: Pages 1 and 14.

Permit identifier
25-0008-ST-01Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Exact historical permit identifier. Locator: Page headers.

Issued on
December 3, 2018Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Actual permit issue date, distinct from the 2017 application receipt and 2011 land use finding. Locator: Page 1 signature date.

Stated expires on
December 1, 2023Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Printed expiration date. No automatic renewal, cessation or current violation is inferred. Locator: Page headers and condition 12.10.

Reported location
PDX4, 79539 Rippee Road, Boardman, OregonOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Permit location issued to Vadata Inc. No independent Atlas building or current ownership join made. Locator: Page 1.

Generator count
96 generatorsOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Calculated from the same Table 1 total column: 3 plus 3 plus 1 plus 1 plus 7 plus 81 plus 0. Historical approved table scope, not a current installation count. Existing and proposed columns are not added again. Locator: Page 6 Table 1 total column and footnotes.

Equipment scope
Table totals cover three 750 kW, three 800 kW, one 1000 kW, one 1825 kW, seven 2000 kW and 81 units of 2500 kW, with zero Type G units in the replacement scenario.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Nameplate ratings and historical permitted table totals. No grid load or aggregate operating MW inferred. Locator: Page 6 Table 1.

Replacement scope
The table describes 49 existing and 32 proposed Type F units. Three existing Type G units may be replaced by three Type E units, giving seven Type E and zero Type G in the future total columns.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

The replacement is conditional, not evidence it happened. Proposed means deferred or not on site as of April 2, 2018. Counting both the existing Type G and its replacement Type E would double count the alternative. Locator: Page 6 Table 1 and footnotes.

Fuel
Ultra low sulfur diesel, ASTM Grade 2 distillate with sulfur no greater than 0.0015 percent by weight.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

Historical permit fuel requirement, not an observed purchase or fuel use. Locator: Page 3 condition 1.6.

Historical fuel limit
758,870 gallons for all emergency and nonemergency engine operations over a rolling twelve month period.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

As written in the 2018 permit. This is a permitted ceiling, not actual consumption or a current independently verified allowance. Locator: Page 4 condition 1.7.

Historical hour limits
The 2018 text sets a 100 hour calendar year combined allowance, with a 50 hour nonemergency subset counted within it. It states no hour limit for emergency situations.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

The fifty hour subset is not added to make 150 hours. These are dated permit terms, not a determination of current federal rules; the separate fuel ceiling covers all operations as written. Locator: Pages 4 and 5 condition 2.5.

Historical emission scope
Plant site emission limits apply to nonemergency operations including commissioning over rolling twelve month periods.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

These limits are separate from actual emergency emissions, measured emissions and the all operation fuel ceiling. No emissions total is calculated. Locator: Pages 7 and 8 conditions 4.1, 4.2 and 5.2.

Continuation conditions
The permit describes continued authority if a timely complete renewal or Title V application is submitted, or another authorizing permit is issued before expiration. It also describes conditional persistence of earlier requirements.Oregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

These provisions do not prove that any condition was met. Current renewal, continuation or replacement evidence has not been reviewed. Locator: Page 14 condition 12.10.

Current permit validity
Not establishedOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

No current renewal, timely complete application, continuation or replacement permit is established. Locator: Historical permit review boundary.

Actual installed equipment
Not establishedOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

No actual installation, completed replacement or current equipment inventory is established from this historical permit. Locator: Historical permit review boundary.

Actual generation
Not establishedOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

No actual operating hours or generated electricity is established. Locator: Historical permit review boundary.

Measured emissions
Not establishedOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

No measured emissions or actual compliance conclusion is established. Locator: Historical permit review boundary.

Atlas record id
Not establishedOregon Department of Environmental Quality. Source: Publication date not stated. Checked: October 23, 2026.

No independently verified building or campus identity join is made. Locator: Historical permit review boundary.

"},{"id":"air-egrid-state-2023-or","html":"

Oregon historical2023 electricity-generation emissions

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.

Status
historicalU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 Data Year column.

Egrid report year
2023U.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 YEAR column.

Egrid state fips
41U.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 FIPSST column.

Egrid state basis
EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence.U.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 labels,codes,units and review scope.

Egrid annual net generation
61683300.01 MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STNGENAN (State annual net generation (MWh)).

Egrid annual nox emissions
19715.19 tonsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STNOXAN (State annual NOx emissions (tons)).

Egrid annual so2 emissions
622.80 tonsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STSO2AN (State annual SO2 emissions (tons)).

Egrid annual co2 emissions
11231359.31 tonsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STCO2AN (State annual CO2 emissions (tons)).

Egrid nox total output rate
0.64 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STNOXRTA (State annual NOx total output emission rate (lb/MWh)).

Egrid so2 total output rate
0.02 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STSO2RTA (State annual SO2 total output emission rate (lb/MWh)).

Egrid co2 total output rate
364.16 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

EPA eGRID2023 revision2 state electricity-generation emissions context,ST23 worksheet. Historical2023,not current2026 conditions or data center facility emissions. Annual NOx,SO2 andCO2 totals in source tons are distinct from source-reported total output rates in lb/MWh;CO2 is not CO2 equivalent. Annual net generation is MWh,not installed capacity or customer use. Rates are not marginal emissions,ambient concentrations,health effects or emissions factors allocated to a data center. No tons-to-tonnes conversion,rate recomputation,facility join or causal data center inference. State generation context does not establish the mix delivered to consumers. Puerto Rico source row is outside this51state/DC review,not absence. Locator: ST23 OR row 40, STCO2RTA (State annual CO2 total output emission rate (lb/MWh)).

Egrid annual ch4 emissions lb
819377.71 lbsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STCH4AN (State annual CH4 emissions (lbs)).

Egrid annual co2e emissions
11256069.27 tonsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STCO2EQA (State annual CO2 equivalent emissions (tons)).

Egrid annual n2o emissions lb
99914.51 lbsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STN2OAN (State annual N2O emissions (lbs)).

Egrid ozone season nox total output rate
0.58 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STNOXRTO (State ozone season NOx total output emission rate (lb/MWh)).

Egrid extended basis
Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference.U.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 field labels,report year and annual-versus-ozone-season units.

Egrid ozone season nox emissions
7496.78 tonsU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STNOXOZ (State ozone season NOx emissions (tons)).

Egrid co2e total output rate
364.96 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STC2ERTA (State annual CO2 equivalent total output emission rate (lb/MWh)).

Egrid ch4 total output rate
0.01 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STCH4RTA (State annual CH4 total output emission rate (lb/MWh)).

Egrid n2o total output rate
0.00 lb per MWhU.S. Environmental Protection Agency. Source: Publication date not stated. Checked: October 27, 2026.

Historical2023 EPA eGRID ST23 source-reported CH4,N2O,CO2 equivalent and ozone-season NOx context. Annual CH4/N2O totals are source lbs;CO2 equivalent total is source tons;total output rates are lb/MWh. CO2 equivalent differs from raw CO2; no global-warming-potential factor assumed or recomputed,no pounds/tons/metric-tonne conversion. Source-defined ozone-season NOx is not full-year NOx or an ambient ozone concentration. Annual and seasonal rates and totals remain separate,not summed across scopes. No marginal,facility,health-risk or attributable data center emissions inference. Locator: ST23 OR row 40, STN2ORTA (State annual N2O total output emission rate (lb/MWh)).

"},{"id":"air-eia-state-emissions-2025-or","html":"

Oregon historical power and useful thermal emissions2025 and2024

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.

Status
historicalU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 years2025 and2024.

Eia emissions basis
EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins.U.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 header and methodological notes.

Eia emissions co2 2025
9405.00 thousand metric tonsU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 Oregon row;co2;Year 2025.

Eia emissions co2 2024
10351.00 thousand metric tonsU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 Oregon row;co2;Year 2024.

Eia emissions so2 2025
4.00 thousand metric tonsU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 Oregon row;so2;Year 2025.

Eia emissions so2 2024
4.00 thousand metric tonsU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 Oregon row;so2;Year 2024.

Eia emissions nox 2025
20.00 thousand metric tonsU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 Oregon row;nox;Year 2025.

Eia emissions nox 2024
22.00 thousand metric tonsU.S. Energy Information Administration. Source: October 21, 2026. Checked: October 28, 2026.

EIA Table9.5 historical state2025 and2024 emissions estimates from energy consumption at conventional power and combined-heat-and-power plants. Includes electricity generation AND production of useful thermal output,not electricity-only emissions. Source unit is thousand metric tons,not eGRID source tons,pounds,CO2equivalent or emission intensity. Source CO2,SO2 and NOx are distinct pollutants,not summed as one climate measure. Displayed zero values may represent small values rounded to zero;no absence or zero-emissions certification. Retain displayed HTML precision;source says Excel cells provide additional precision,not adopted here. No direct eGRID trend or data center allocation,marginal emissions,ambient concentration,health risk,permit compliance,current2026 activity or Native facility joins. Locator: Table9.5 Oregon row;nox;Year 2024.

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