Power plants in Clay County, Illinois

6 operating power plants in Clay County, Illinois, with 726 MW of nameplate capacity, largest first. From EIA-860M, August 2026.

Plants

6

Nameplate capacity

726 MW

Net generation, 2025

495 GWh

Largest power plants in Clay County

#PlantMW2025 net generation, GWhGWh, 2025Capacity factorOperator
1Raccoon Creek Energy CenterNatural gas456−2.5–Union Electric Co - (MO)
2Maple FlatsSolar25049322.5%Invenergy Services LLC
3IMEA FloraOil9.00.10.1%Illinois Municipal Elec Agency (IL)
4Flora Site AOil5.40.00.1%City of Flora - (IL)
5Flora Site BOil3.60.00.1%City of Flora - (IL)
6Clay FCSolar2.03.821.8%Clay FC, LLC

MW is the nameplate capacity of operating generators and batteries. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources

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Other counties in Illinois