Power plants in Ada County, Idaho
13 operating power plants in Ada County, Idaho, with 828 MW of nameplate capacity, largest first. From EIA-860M, August 2026.
Plants
13
Nameplate capacity
828 MW
Net generation, 2025
1.03 TWh
11 of 13 plants reported
Largest power plants in Ada County
| # | Plant | MW | GWh, 2025 | Capacity factor |
|---|---|---|---|---|
| 1 | Matrix Pleasant ValleySolar | 200 | 460* | – |
| 2 | Kuna BESSBattery storage | 150 | −13.9* | – |
| 3 | Boise Bench BESSBattery storage | 150 | – | – |
| 4 | Pleasant Valley Solar 2 ProjectSolar | 125 | – | – |
| 5 | Lucky Peak Power Plant ProjectHydro | 101 | 311 | 35.1% |
| 6 | ID SolarSolar | 40 | 92.2 | 26.3% |
| 7 | Swan FallsHydro | 27 | 110 | 46.2% |
| 8 | Orchard Ranch SolarSolar | 20 | 45.7 | 26.1% |
| 9 | Barber DamHydro | 4.1 | 6.7 | 18.6% |
| 10 | Boise R DiversionHydro | 3.3 | 0.1 | 0.3% |
| 11 | Hidden Hollow EnergyLandfill gas | 3.2 | 2.8 | 9.9% |
| 12 | MC6 Hydro FacilityHydro | 2.3 | 8.4 | 41.5% |
| 13 | Mora Drop Hydroelectric ProjectHydro | 1.7 | 4.6 | 30.9% |
* Fewer than 12 months of 2025 reported, so the total is partial.
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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