Nameplate capacity
265 MW
Rank in Idaho
#6
of 155 plants
In service since
1952
September 1952
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Avista Corp
- County
- Bonner County
- Generating units
- 4
- Share of state capacity
- 4.03%
- Rank among hydro plants in Idaho
- #3 of 76
- EIA plant code
- 833
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Conventional Hydroelectric | 73 MW | 74 MW | 1953 | Operating |
| 3 | Conventional Hydroelectric | 73 MW | 73 MW | 1952 | Operating |
| 1 | Conventional Hydroelectric | 59 MW | 44 MW | 1953 | Operating |
| 4 | Conventional Hydroelectric | 59 MW | 63 MW | 1952 | 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
| Rathdrum Power LLC | Natural gas | 302 MW |
| Evander Andrews Power Complex | Natural gas | 271 MW |
| Matrix Pleasant Valley | Solar | 200 MW |
| Palisades Dam | Hydro | 176 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 265 MW solar plant and a 265 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