Power plants in Sangamon County, Illinois
7 operating power plants in Sangamon County, Illinois, with 1,313 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Sangamon County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Double Back DiamondSolar | 593 | 915 | 17.6% |
| 2 | Lincoln Land WindWind | 302 | 1,005 | 38.0% |
| 3 | DallmanCoal | 230 | 901 | 44.7% |
| 4 | InterstateNatural gas | 139 | 57.5 | 4.7% |
| 5 | FactoryOil | 27 | 0.1 | 0.1% |
| 6 | ReynoldsOil | 18 | 0.2 | 0.1% |
| 7 | LakesideOil | 5.4 | 0.0 | – |
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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