Nuclear power plants in Illinois
6 operating nuclear power plants in Illinois with 12,415 MW of nuclear capacity, largest first. From EIA-860M, August 2026.
Plants
6
Nuclear capacity
12,415 MW
Net generation, 2025
97.7 TWh
Largest nuclear power plants in Illinois
| # | Plant | Nuclear MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Braidwood Generation StationWill County | 2,450 | 20,165 | 94.0% |
| 2 | Byron Generating StationOgle County | 2,450 | 19,914 | 92.8% |
| 3 | LaSalle Generating StationLaSalle County | 2,340 | 18,874 | 92.1% |
| 4 | Dresden Generating StationGrundy County | 2,019 | 15,205 | 86.0% |
| 5 | Quad Cities Generating StationRock Island County | 2,019 | 15,174 | 85.8% |
| 6 | Clinton Power StationDeWitt County | 1,138 | 8,338 | 83.6% |
Projects where nuclear is the largest fuel or at least a fifth of nameplate capacity. MW is nuclear nameplate only; net generation covers the whole project. Source: EIA-860M August 2026, published 2026-09-24, and EIA-923 2025. Page updated 2026-10-04. Data sources
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