{ "schema_version": 1, "source_compilation_context": { "il": { "attribution": { "inventory": { "name": "Compute Atlas", "creator": "Edward Kubiak", "url": "https://www.compute-atlas.com/api", "license": "CC BY 4.0", "license_url": "https://creativecommons.org/licenses/by/4.0/", "snapshot_url": "https://www.compute-atlas.com/api/facilities", "retrieved": "2026-10-14", "sha256": "79ad432dab7c128e428234c9d0dd40933114b415a4a5d697db00095637d50f37", "changes": "Added provenance, publication-date distinctions, display-safe wording, quarantine flags and state partitioning. Original source records retained locally." }, "counties": "U.S. Census Bureau county boundaries (public domain)", "research": "Field-specific source context. See the linked source and limits on each record." }, "source_data_url": "https://datacentersatlas.com/data/il.json", "updated": "2026-10-26" } }, "scope": "Retained county context, which can be broad or unresolved. No parcel or municipal jurisdiction is inferred. Research records retain their sources, dates and location limits. Counts are not a census of operating buildings. Company name links alone do not establish ownership or operation.", "collection": { "kind": "counties", "key": "17107", "label": "Logan County, Illinois" }, "records": [ { "id": "hut8-logan-prairie-latham-il", "state": "il", "kind": "facility", "name": "Logan Prairie Data Center", "group": "proposed", "status": "Proposed", "raw_status": "proposed", "status_field": "current_status", "crypto": false, "type": "Data center (inventory classification)", "counties": [ "Logan" ], "city": "Latham", "address": "", "who": "", "end_user": "", "mw": null, "power": "", "power_note": "", "investment": "", "jobs": "", "acres": null, "utility": "", "water": "", "incentives": "", "note": "Manual source context is available for this inherited inventory record. The inventory label and approximate geography are retained for discovery. This is not certification of current operation, ownership, a separate physical building, technical capacity or a precise parcel. Missing fields remain unknown. Hut8 Logan Prairie proposed phases and fiscal forecast. 500MWnot provenIT or energized load.65Mannualupperestimate uses2023valuation inputs and official assessment still future; no guaranteed1.95Btaxpayment.50acfootprintnotverifiedlargerlandholdings.18monthsafterapprovalnotfixedstart/opening. Water for domestic/landscape not cooling; finalpermitcapnotread. No later CUP decision or interconnection clearance established. Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building. Named-site current agency/operator stage, reviewed October 15, 2026. Its development steps and conditional construction timeline are not achieved milestones. Forecast jobs, investment, water use and capacity remain separate from realized figures. Publication date of this current page is not established; the review date is not an event date. Displayed status uses the explicitly reviewed current status field; it is a source statement, not a physical inspection.", "date": "", "events": [], "timeline": [], "opened": "", "tier": "", "sources": [ { "url": "https://www.hut8.com/data-centers/logan-prairie", "host": "hut8.com", "date": "", "published": "", "checked": "2026-10-14", "date_kind": "publication date not established", "label": "Reviewed source" } ], "loc": { "lat": 40.12456, "lng": -89.36757, "precision": "county", "basis": "Shown at county level only. The dot is placed inside the county for the map and is not the site, its address or a parcel." }, "reviewed_evidence": [ { "overlay": "primary-source-review-round9-2026-10-14.json", "scope": "Hut8 Logan Prairie proposed phases and fiscal forecast", "fields": { "project_name": "Logan Prairie", "county": "Logan County, Illinois", "developer_described_stage": "early development, local approvals required", "published_capacity_mw": 500, "power_basis": "capacity, not explicitly critical IT", "site_footprint_acres": 50, "planned_data_halls": 3, "planned_investment_usd_min_exclusive": 5000000000, "expected_construction_jobs_min_exclusive": 1500, "expected_fullbuildout_permanent_jobs_max": 200, "conditional_construction_duration_months_approx": 18, "developer_estimated_average_annual_property_tax_usd_max": 65000000, "tax_forecast_period_years": 30, "projected_domestic_landscape_water_gallons_per_day_max_approx": 9000, "community_open_house_date": "2026-02-04" }, "notes": [ "500MWnot provenIT or energized load.65Mannualupperestimate uses2023valuation inputs and official assessment still future; no guaranteed1.95Btaxpayment.50acfootprintnotverifiedlargerlandholdings.18monthsafterapprovalnotfixedstart/opening. Water for domestic/landscape not cooling; finalpermitcapnotread. No later CUP decision or interconnection clearance established.", "Fields can apply to shared campus, regional or historical context; consult source review before assigning to a building." ], "sources": [ { "url": "https://www.hut8.com/data-centers/logan-prairie", "host": "hut8.com", "date": "", "published": "", "checked": "2026-10-14", "date_kind": "publication date not established", "label": "Reviewed source" } ], "whole_record_certified": false }, { "overlay": "Atlas targeted primary-source follow-up", "scope": "Named-site current agency/operator stage, reviewed October 15, 2026", "fields": { "current_status": "proposed", "status_basis": "Hut 8 explicitly describes Logan Prairie as an early proposal still requiring local approvals." }, "notes": [ "Its development steps and conditional construction timeline are not achieved milestones. Forecast jobs, investment, water use and capacity remain separate from realized figures. Publication date of this current page is not established; the review date is not an event date." ], "sources": [ { "url": "https://www.hut8.com/data-centers/logan-prairie", "host": "hut8.com", "date": "", "published": "", "checked": "2026-10-15", "date_kind": "publication date not established", "label": "Reviewed source" } ], "checked": "2026-10-15", "capture_sha256": "4c21925b3767418c364ff8e4f72eda9a9a33fe953e099bd3b7bfb1899158a834", "events": [], "whole_record_certified": false } ], "manual_source_reviewed": true, "whole_record_certified": false, "field_evidence_present": true, "inventory_label_retained": true, "precision_label": "Exact site not published; shown at county level", "summary": "Latham · Logan · Source context reviewed", "location_display": { "policy": "reviewed-map-references-2026-10-23", "decision": "withheld_unreviewed_point", "scope": "The available point evidence does not establish a supported site location. No site pin, nearby distance or aerial destination is published. The original coordinate and its provenance remain in research history.", "county_display": "17107" } } ], "compilation_license": "withheld_pending_owner_decision" }