Pinckneyville
Pinckneyville is a 380 MW natural gas power plant in Perry County, Illinois, operated by Union Electric Co - (MO). EIA-860M lists 8 generating units here, inside MISO. Its units entered service between 2000 and 2001.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 380 MW
- 316 MW net summer
- Generating units
- 8
- In service
- 2000–2001
- EIA plant ID
- 55202
Where it is
Loading map…
- County
- Perry County, Illinois
- Coordinates
- 38.1114, -89.3467
- Balancing authority
- MISO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Union Electric Co - (MO)
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combustion Turbine
- Status
- Operating
Pinckneyville: FAQ
- Where is Pinckneyville?
- In Perry County, Illinois (IL). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Pinckneyville?
- 380 MW of nameplate capacity across 8 units, as of the EIA-860M release for 2026-07.
- Who owns Pinckneyville?
- EIA-860M names Union Electric Co - (MO) as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Pinckneyville LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Union Electric Co - (MO) here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Pinckneyville LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Pinckneyville still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.