Power Plants in St Charles County, Missouri

St Charles County, Missouri has 2 power plants totaling 1,104 MW of nameplate capacity. Browse every plant below with fuel type, operator, and capacity.

Plants2operating sites
Capacity1,103 MWnameplate
Generation3.1M MWhannual
CO₂3.5Mmetric tons/year
Coal 100%

Plant locations

All plants in this county

PlantCityFuelCapacityOperator
SiouxWest AltonCoal1,099 MWUnion Electric Co - (Mo)
O'fallon Renewable Energy CenterO'fallonSolar4.5 MWUnion Electric Co - (Mo)

About power generation in St Charles County

St Charles County, Missouri has 2 power plants totaling 1,104 MW of nameplate capacity. Coal is the dominant fuel source at 100% of installed capacity, followed by Solar (0%). The largest facility is Sioux at 1,099 MW. Data comes from EIA Form 860, EIA Form 923, and EPA eGRID federal releases.

To find plants closer to a specific address in St Charles County, use the address lookup — it shows every plant within a chosen radius along with distance, fuel type, and emissions.