Power plants in Cassia County, Idaho
6 operating power plants in Cassia County, Idaho, with 132 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Cassia County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Milner HydroHydro | 60 | 33.7 | 6.5% |
| 2 | Burley Butte WindparkWind | 21 | 56.0 | 30.0% |
| 3 | Milner Dam Wind Park LLCWind | 20 | 50.5 | 29.6% |
| 4 | Raft River Geothermal Power PlantGeothermal | 16 | 88.1 | – |
| 5 | Golden Valley Wind Park LLCWind | 12 | 27.9 | 26.6% |
| 6 | Milner Butte LFGELandfill gas | 3.9 | 26.7 | 78.1% |
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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