St Charles County, MO power plants

8 EIA-registered plants with 6 GW of nameplate capacity inside MISO; the largest is Waterford 3 at 1,199.8 MW.

Capacity by fuel

Nameplate capacity · plants

natural gas: 3.7 GW5
nuclear: 1.2 GW1
coal: 1.1 GW1
solar: 4.5 MW1

St Charles County, MO capacity ranking

8 matching plants · ranked by nameplate capacity

Rank	Plant	Capacity	Type	Operator	Location
1	Waterford 3Entergy Louisiana LLCDetailed profile	1,199.8 MW	Nuclear	Entergy Louisiana LLC	St Charles County
2	SiouxUnion Electric Co - (MO)Detailed profile	1,099.4 MW	Conventional Steam Coal	Union Electric Co - (MO)	St Charles County
3	Little GypsyEntergy Louisiana LLC	1,002.9 MW	Natural Gas Steam Turbine	Entergy Louisiana LLC	St Charles County
4	St. Charles Power Station (LA)Entergy Louisiana LLCDetailed profile	1,000 MW	Natural Gas Fired Combined Cycle	Entergy Louisiana LLC	St Charles County
5	Taft Cogeneration FacilityOccidental Chemical CorporationDetailed profile	894.2 MW	Natural Gas Fired Combined Cycle	Occidental Chemical Corporation	St Charles County
6	Waterford 1 & 2Entergy Louisiana LLC	445.5 MW	Natural Gas Steam Turbine	Entergy Louisiana LLC	St Charles County
7	Dow St Charles OperationsDow Chemical Co - St Charles	323.6 MW	Natural Gas Fired Combined Cycle	Dow Chemical Co - St Charles	St Charles County
8	O'Fallon Renewable Energy CenterUnion Electric Co - (MO)	4.5 MW	Solar Photovoltaic	Union Electric Co - (MO)	St Charles County

Other MISO counties

plants

County assignment and capacity come from the EIA generator inventory. Capacity is nameplate capacity, not seasonal capability or available operating capacity. A plant can include multiple generators and technologies.