Pinckneyville
Natural gas power plant in Perry County, Illinois. 380 MW of nameplate capacity across 8 generators, operated by Union Electric Co - (MO).
Also known as Pinckneyville Power Plant · EIA plant 55202
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Key facts
- Capacity
- 380 MWNameplate
- Generators
- 8 operatingEIA-860M, August 2026
- Operating since
- June 2000First generator online
- Operator
- Union Electric Co - (MO)EIA operator ID 19436
- Grid
- MISOBalancing authority MISO
- Price nodes
- 8 MISO nodesResource nodes with prices
- Location
- Perry County, IL38.1114, −89.3467
- EIA plant ID
- 55202EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Pinckneyville produces
Free · EIA-923Net generation, 2025
66.6 GWh
66,565 MWh, final
Capacity factor, 2025
2.0%
2024: 2.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
31.1–146.5
GWh a year. Low 2022, high 2018
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 47,632 | Not reported | 12 of 12 |
| 2001 | 109,134 | Not reported | 11 of 12 |
| 2002 | 132,397 | Not reported | 12 of 12 |
| 2003 | 61,707 | Not reported | 9 of 12 |
| 2004 | 51,714 | Not reported | 12 of 12 |
| 2005 | 124,370 | Not reported | 12 of 12 |
| 2006 | 90,368 | Not reported | 12 of 12 |
| 2007 | 165,133 | Not reported | 12 of 12 |
| 2008 | 88,033 | Not reported | 12 of 12 |
| 2009 | 63,816 | Not reported | 12 of 12 |
| 2010 | 146,067 | 4.4% | 12 of 12 |
| 2011 | 136,899 | 4.1% | 12 of 12 |
| 2012 | 91,213 | 2.7% | 12 of 12 |
| 2013 | 30,840 | 0.9% | 12 of 12 |
| 2014 | 15,814 | 0.5% | 12 of 12 |
| 2015 | 55,182 | 1.7% | 12 of 12 |
| 2016 | 95,213 | 2.9% | 12 of 12 |
| 2017 | 99,461 | 3.0% | 12 of 12 |
| 2018 | 146,519 | 4.4% | 12 of 12 |
| 2019 | 77,350 | 2.3% | 12 of 12 |
| 2020 | 71,669 | 2.1% | 12 of 12 |
| 2021 | 110,537 | 3.3% | 12 of 12 |
| 2022 | 31,073 | 0.9% | 12 of 12 |
| 2023 | 42,403 | 1.3% | 12 of 12 |
| 2024 | 79,774 | 2.4% | 12 of 12 |
| 2025 | 66,565 | 2.0% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · MISOEmissions
Free · EPA CAMPDCO₂, 2025
42,916
US short tons. 2024: 49,923
SO₂, 2025
0
US short tons
NOx, 2025
34
US short tons
CO₂ per MWh, calculated
0.64 t
About 1,289 lb per MWh
8 of 8 EPA units reported CO₂ in 2025 (CT01, CT02, CT03, CT04, CT05, CT06, CT07, CT08), matched to EIA plant 55202 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | 45.0 | June 2000 |
| 2 | Natural Gas Fired Combustion Turbine | 45.0 | June 2000 |
| 3 | Natural Gas Fired Combustion Turbine | 45.0 | June 2000 |
| 4 | Natural Gas Fired Combustion Turbine | 45.0 | June 2000 |
| 5 | Natural Gas Fired Combustion Turbine | 50.0 | June 2001 |
| 6 | Natural Gas Fired Combustion Turbine | 50.0 | June 2001 |
| 7 | Natural Gas Fired Combustion Turbine | 50.0 | June 2001 |
| 8 | Natural Gas Fired Combustion Turbine | 50.0 | July 2001 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Union Electric Co - (MO) as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Pinckneyville
More plants operated by Union Electric Co - (MO)
Questions about Pinckneyville
How much power does Pinckneyville produce?
Pinckneyville reported 66,565 MWh (66.6 GWh) of net generation in 2025, a 2.0% capacity factor on 380 MW of nameplate capacity.
Where is Pinckneyville?
Pinckneyville is in Perry County, Illinois, at 38.1114, −89.3467. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Pinckneyville?
EIA-860M for August 2026 lists Union Electric Co - (MO) as the operator (EIA operator ID 19436). The operator is not always the owner.
When did Pinckneyville start operating?
Its first generator began operating in June 2000, according to EIA-860M.
Does InfraMap have power prices for Pinckneyville?
Yes. InfraMap has MISO day-ahead and real-time prices at 8 price nodes linked to Pinckneyville, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page