Nameplate capacity
60 MW
Rank in Idaho
#30
of 155 plants
In service since
1992
September 1992
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Idaho Power Co
- County
- Cassia County
- Generating units
- 3
- Share of state capacity
- 0.91%
- Rank among hydro plants in Idaho
- #10 of 76
- EIA plant code
- 7190
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 47 MW | 38 MW | 1992 | Operating |
| 2 | Conventional Hydroelectric | 12 MW | 7.1 MW | 1992 | Operating |
| 3 | Conventional Hydroelectric | 0.8 MW | 0.3 MW | 1992 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Idaho
| Franklin Battery Storage | Battery storage | 60 MW |
| Lower Salmon | Hydro | 60 MW |
| Horse Butte Wind I, LLC | Wind | 58 MW |
| Twin Falls (ID) | Hydro | 53 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 60 MW solar plant and a 60 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Idaho power plants · What Idaho actually generates