Kinmundy
Marion County, Illinois · EIA plant ID 55204 · Operator: Union Electric Co - (MO)
Nameplate270MWSummer 208 MW
Generators2in service
Net generation3GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate20,132Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as rarely runs
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2001 | 62.9 | 4.4% | 12,291 |
| 2002 | 35.1 | 1.7% | 12,645 |
| 2003 | 23.6 | 1.2% | 13,219 |
| 2004 | 2.1 | 0.1% | 24,139 |
| 2005 | 45.3 | 2.2% | 12,097 |
| 2006 | 8.4 | 0.4% | 15,306 |
| 2007 | 19.1 | 0.9% | 12,900 |
| 2008 | 6.2 | 0.3% | 16,755 |
| 2009 | -1.3 | -0.1% | — |
| 2010 | 12 | 0.7% | 14,562 |
| 2011 | 16.8 | 0.9% | 13,837 |
| 2012 | 15.8 | 0.9% | 13,958 |
| 2013 | 3.5 | 0.2% | 21,237 |
| 2014 | 1.3 | 0.1% | — |
| 2015 | -1.1 | -0.1% | — |
| 2016 | 5.5 | 0.3% | 18,189 |
| 2017 | 7.9 | 0.4% | 15,748 |
| 2018 | 12.1 | 0.7% | 14,963 |
| 2019 | 0.2 | 0.0% | — |
| 2020 | 15.7 | 0.9% | 14,147 |
| 2021 | 17.7 | 1.0% | 14,083 |
| 2022 | 0.2 | 0.0% | — |
| 2023 | 3.2 | 0.2% | 21,500 |
| 2024 | -0 | 0.0% | — |
| 2025 | 3.1 | 0.2% | 20,132 |
Fuel capability
Gas-fired turbines (CT/GT/CA/CS) that can also burn liquid fuel. EIA-860 Schedule 3 for capability, EIA-923 for actual burn.
StatusLikely still dual fuel
Liquid fuel burned · 36 mo6,821 MMBtu
Last month with liquid burnDec 2024
Switch while operating—
Net summer MW on gas—
Net summer MW on oil—
Time gas → oil—
Time oil → gas—
⚠ EIA-860 vs 923: 923 shows liquid fuel burn in gas turbines but 860 lists no oil capability.
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| 1 | Natural Gas Fired Combustion Turbine | GT | 135 | 104 | Apr 2001 | Operating | — | coming soon |
| 2 | Natural Gas Fired Combustion Turbine | GT | 135 | 104 | May 2001 | Operating | — | coming soon |
Owner / operator
Operator: Union Electric Co - (MO). Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Union Electric Co - (MO) | 100.0% | 270 MW |
Nearby plants
Within 80 km.
| Crooked Creek PV I | 99 MW | 13 km |
| Marion Solar 2 | 1 MW | 16.3 km |
| Marion Solar 4b LLC | 2 MW | 17.6 km |
| Sandoval 2 | — | 22.4 km |
| Sandoval | 2 MW | 22.5 km |
| Ruby Solar, LLC | — | 23 km |