Power plants in Benton County, Washington
5 operating power plants in Benton County, Washington, with 1,322 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
5
Nameplate capacity
1,322 MW
Net generation, 2025
8.04 TWh
Largest power plants in Benton County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Columbia Generating StationNuclear | 1,200 | 7,748 | 73.7% |
| 2 | Nine CanyonWind | 96 | 186 | 22.1% |
| 3 | ChandlerHydro | 12 | 27.6 | 26.2% |
| 4 | McNary Dam Fish Attraction ProjectHydro | 10 | 72.5 | 82.8% |
| 5 | Horn Rapids Solar, Storage and TrainingSolar and battery storage | 4.2 | 4.6 | 17.5% |
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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