Union Electric Co - (MO) power plants
Every generating plant EIA-860M files against Union Electric Co - (MO) for 2026-07: 28 plants, 10 GW of nameplate capacity, across 3 states and 8 energy sources.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Plants
- 28
- Nameplate capacity
- 10 GW
- States
- 3
- IA, IL, MO
- Energy sources
- 8
Union Electric Co - (MO) plants by energy source
- Coal2 plants · 3,489 MW
- Hydro2 plants · 333 MW
- Natural gas7 plants · 3,430 MW
- Nuclear1 plants · 1,236 MW
- Petroleum4 plants · 250 MW
- Pumped storage1 plants · 408 MW
- Solar9 plants · 613 MW
- Wind2 plants · 699 MW
Full list of Union Electric Co - (MO) power plants
| LabadieConventional Steam Coal | Union Electric Co - (MO) | Franklin | 2,389.4 | 4 | 1970 | Operating |
| CallawayNuclear | Union Electric Co - (MO) | Callaway | 1,235.8 | 1 | 1984 | Operating |
| SiouxConventional Steam Coal | Union Electric Co - (MO) | St Charles | 1,099.4 | 2 | 1967 | Operating |
| Audrain Generating StationNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Audrain | 814.4 | 8 | 2001 | Operating |
| Goose Creek Energy CenterNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Piatt | 684 | 6 | 2003 | Operating |
| VeniceNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Madison | 586 | 4 | 2002 | Operating |
| Raccoon Creek Energy CenterNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Clay | 456 | 4 | 2002 | Operating |
| Taum SaukHydroelectric Pumped Storage | Union Electric Co - (MO) | Reynolds | 408 | 2 | 1963 | Operating |
| High Prairie Wind FarmOnshore Wind Turbine | Union Electric Co - (MO) | Schuyler | 400 | 1 | 2020 | Operating |
| PinckneyvilleNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Perry | 380 | 8 | 2000 | Operating |
| Atchison County WindOnshore Wind Turbine | Union Electric Co - (MO) | Atchison | 299 | 1 | 2021 | Operating |
| KinmundyNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Marion | 270 | 2 | 2001 | Operating |
| Peno CreekNatural Gas Fired Combustion Turbine | Union Electric Co - (MO) | Pike | 240 | 4 | 2002 | Operating |
| Osage DamConventional Hydroelectric | Union Electric Co - (MO) | Miller | 208 | 8 | 1931 | Operating |
| Huck Finn Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | Audrain | 200 | 1 | 2024 | Operating |
| Boomtown Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | White | 150 | 1 | 2024 | Operating |
| Cass County Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | Cass | 150 | 1 | 2024 | Operating |
| KeokukConventional Hydroelectric | Union Electric Co - (MO) | Lee | 124.8 | 15 | 1913 | Operating |
| FairgroundsPetroleum Liquids | Union Electric Co - (MO) | Cole | 68.3 | 1 | 1974 | Operating |
| MoreauPetroleum Liquids | Union Electric Co - (MO) | Cole | 60.8 | 1 | 1978 | Operating |
| MexicoPetroleum Liquids | Union Electric Co - (MO) | Audrain | 60.7 | 1 | 1978 | Operating |
| MoberlyPetroleum Liquids | Union Electric Co - (MO) | Randolph | 60.6 | 1 | 1978 | Operating |
| Vandalia Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | Audrain | 50 | 1 | 2025 | Operating |
| Bowling Green Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | Pike | 50 | 1 | 2025 | Operating |
| Montgomery County Community Solar CenterSolar Photovoltaic | Union Electric Co - (MO) | Montgomery | 5.7 | 1 | 2022 | Operating |
| O'Fallon Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | St Charles | 4.5 | 1 | 2014 | Operating |
| Renewable Energy Center at BJHSolar Photovoltaic | Union Electric Co - (MO) | St Louis City | 1.6 | 1 | 2019 | Operating |
| Cape Girardeau Renewable Energy CenterSolar Photovoltaic | Union Electric Co - (MO) | Cape Girardeau | 1.2 | 1 | 2021 | Operating |
Union Electric Co - (MO): FAQ
- How many power plants does Union Electric Co - (MO) operate?
- EIA-860M lists 28 operating plants against “Union Electric Co - (MO)” for 2026-07, totalling 10 GW of nameplate capacity in 3 states.
- Is Union Electric Co - (MO) the owner of these plants?
- EIA-860M names one reporting entity per generator. That entity operates the plant on the survey; ownership can sit with a parent, a partnership or a tax-equity structure that the form does not record.
- Why are affiliates listed separately?
- Because EIA files them separately. Rolling subsidiaries into a parent would need an ownership map EIA-860M does not publish, so this page does not invent one.