Power plants in Marion County, Illinois
4 operating power plants in Marion County, Illinois, with 372 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
4
Nameplate capacity
372 MW
Net generation, 2025
8.42 GWh
3 of 4 plants reported
Largest power plants in Marion County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | KinmundyNatural gas | 270 | 3.1 | 0.1% |
| 2 | Crooked Creek PV ISolar | 99 | – | – |
| 3 | Marion Solar 4b LLCSolar | 2.0 | 3.7 | 21.1% |
| 4 | Marion Solar 2Solar | 1.0 | 1.7 | – |
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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