Power plants in Malheur County, Oregon
14 operating power plants in Malheur County, Oregon, with 110 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
14
Nameplate capacity
110 MW
Net generation, 2025
343 GWh
Largest power plants in Malheur County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Neal Hot Springs Geothermal ProjectGeothermal | 33 | 152 | 52.7% |
| 2 | Open Range Solar Center, LLCSolar | 10 | 22.0 | 25.1% |
| 3 | Thunderegg Solar Center, LLCSolar | 10 | 20.3 | 23.2% |
| 4 | Vale Air Solar Center, LLCSolar | 10 | 20.7 | 23.6% |
| 5 | Hyline Solar Center, LLCSolar | 9.0 | 20.3 | 25.8% |
| 6 | Tunnel 1 Power ProjectHydro | 8.5 | 21.1 | 28.3% |
| 7 | Grove Solar Center, LLCSolar | 6.0 | 13.1 | 25.0% |
| 8 | Owyhee Dam Power ProjectHydro | 5.0 | 28.2 | 64.3% |
| 9 | Railroad Solar Center, LLCSolar | 4.5 | 10.2 | 25.8% |
| 10 | Morgan Solar CenterSolar | 3.0 | 7.3 | 27.8% |
| 11 | Vale Solar CenterSolar | 3.0 | 6.2 | 23.5% |
| 12 | Ontario Solar CenterSolar | 3.0 | 7.5 | 28.4% |
| 13 | Verde Light Community SolarSolar | 3.0 | 6.8 | 25.9% |
| 14 | Michell Butte Power ProjectHydro | 2.0 | 6.6 | 37.5% |
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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