POWER & FACILITY EVIDENCE
Power and Facility Evidence Database Review power assets, contract observations, facility specifications and relationships from public sources.
Global Facilities and Power Map Korea Site and Power Map Korea Data Center Database This partial collection preserves source-level observations. Generation and registered connection capacity are distinct from spare supply capacity for data centers. Planned dates and contract announcements do not confirm energization or supply commencement.
Current filters 3items · current page 1–3 · Source records, not unique facilities.
Power assets and projects · USA · eia860m Union Power Station / STG4 Generator · Operations
Metric or condition Source value Basis, scope and stage Nameplate Capacity (MW) 255 MW Original source column definition · Generator · (OP) Operating Net Summer Capacity (MW) 513.9 MW Original source column definition · Generator · (OP) Operating Net Winter Capacity (MW) 594 MW Original source column definition · Generator · (OP) Operating
Detailed source fields Original source field Published value or condition Entity ID 814 Entity Name Entergy Arkansas LLC Plant ID 55380 Plant Name Union Power Station Google Map Map Bing Map Map Plant State AR County Union Balancing Authority Code MISO Sector Electric Utility Generator ID STG4 Unit Code BL04 Nameplate Capacity (MW) 255 Net Summer Capacity (MW) 513.9 Net Winter Capacity (MW) 594 Technology Natural Gas Fired Combined Cycle Energy Source Code NG Prime Mover Code CA Operating Month 6 Operating Year 2003 Status (OP) Operating Latitude 33.296146 Longitude -92.58936 Original text (OP) Operating Coordinate accuracy source_precision_not_independently_surveyed source_record_id Operating:11992
Parent facility or plant record
Coordinates locate the plant, including when this record describes one generator.
Location: Plant location · not an individual generator location
Sources, reference dates and retrieval dates 2items eia860 ↗ Data Source 2025 · Retrieved 2026-10-05
Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.
Source location 3_1_Generator_Y2025.xlsx#Operable:11993
Sources EV-b2413b1faaa8a730a316e6dd Usage terms US government public domain
eia860m ↗ Data Source 2026-08 · Retrieved 2026-10-05
Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.
Source location Operating:11992
Sources EV-c8ee31a2bd470c751b5b58e1 Usage terms US government public domain
Observations for this power asset View on the global map Source snapshots by date · USA · eia860 Union Power Station / STG4 Generator · Operations
Metric or condition Source value Basis, scope and stage
Detailed source fields Original source field Published value or condition Utility ID 814 Utility Name Entergy Arkansas LLC Plant Code 55380 Plant Name Union Power Station State AR County Union Generator ID STG4 Technology Natural Gas Fired Combined Cycle Prime Mover CA Unit Code BL04 Ownership W Duct Burners N Can Bypass Heat Recovery Steam Generator? X RTO/ISO LMP Node Designation EAI_PUPP_4C RTO/ISO Location Designation for Reporting Wholesale Sales Data to FERC EAI_PUPP_4C Nameplate Capacity (MW) 255 Nameplate Power Factor 0.85 Summer Capacity (MW) 513.9 Winter Capacity (MW) 594 Minimum Load (MW) 140 Uprate or Derate Completed During Year N Status OP Synchronized to Transmission Grid X Operating Month 6 Operating Year 2003 Associated with Combined Heat and Power System N Sector Name Electric Utility Sector 1 Topping or Bottoming X Energy Source 1 NG Time from Cold Shutdown to Full Load OVER Multiple Fuels? N Cofire Fuels? N Original text OP source_record_id 3_1_Generator_Y2025.xlsx#Operable:11993
Parent facility or plant record
No separate metric summary is available. Consult the detailed source fields.
Sources, reference dates and retrieval dates 1items eia860 ↗ Data Source 2025 · Retrieved 2026-10-05
Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.
Source location 3_1_Generator_Y2025.xlsx#Operable:11993
Sources EV-b2413b1faaa8a730a316e6dd Usage terms US government public domain
Observations for this power asset Source snapshots by date · USA · eia860m Union Power Station / STG4 Generator · Operations
Metric or condition Source value Basis, scope and stage
Detailed source fields Original source field Published value or condition Entity ID 814 Entity Name Entergy Arkansas LLC Plant ID 55380 Plant Name Union Power Station Google Map Map Bing Map Map Plant State AR County Union Balancing Authority Code MISO Sector Electric Utility Generator ID STG4 Unit Code BL04 Nameplate Capacity (MW) 255 Net Summer Capacity (MW) 513.9 Net Winter Capacity (MW) 594 Technology Natural Gas Fired Combined Cycle Energy Source Code NG Prime Mover Code CA Operating Month 6 Operating Year 2003 Status (OP) Operating Latitude 33.296146 Longitude -92.58936 Original text (OP) Operating source_record_id Operating:11992
Parent facility or plant record
No separate metric summary is available. Consult the detailed source fields.
Sources, reference dates and retrieval dates 1items eia860m ↗ Data Source 2026-08 · Retrieved 2026-10-05
Source: U.S. Energy Information Administration (EIA), 2025 final / August 2026 preliminary.
Source location Operating:11992
Sources EV-c8ee31a2bd470c751b5b58e1 Usage terms US government public domain
Observations for this power asset 