Power plants in Cascade County, Montana
8 operating power plants in Cascade County, Montana, with 321 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Largest power plants in Cascade County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | MoronyHydro | 63 | 215 | 38.9% |
| 2 | CochraneHydro | 59 | 215 | – |
| 3 | Rainbow (MT)Hydro | 59 | 299 | 57.8% |
| 4 | RyanHydro | 55 | 377 | 78.0% |
| 5 | HolterHydro | 45 | 248 | 51.8% |
| 6 | Black EagleHydro | 27 | 110 | 47.2% |
| 7 | Horseshoe Bend Wind ParkWind | 9.7 | 21.2 | – |
| 8 | Black Eagle Solar, LLCSolar | 3.0 | 4.9 | 18.7% |
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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