Koyle Ranch Hydroelectric Project
Hydro power plant · Gooding County, Idaho
Nameplate capacity
1.3 MW
Rank in Idaho
#148
of 155 plants
In service since
1983
December 1983
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Koyle Hydro Inc
- County
- Gooding County
- Generating units
- 3
- Share of state capacity
- 0.02%
- Rank among hydro plants in Idaho
- #69 of 76
- EIA plant code
- 10781
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN3 | Conventional Hydroelectric | 0.8 MW | 0.8 MW | 1983 | Operating |
| GEN2 | Conventional Hydroelectric | 0.3 MW | 0.3 MW | 1983 | Operating |
| GEN1 | Conventional Hydroelectric | 0.2 MW | 0.2 MW | 1983 | 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
| Mile 28 Water Power Project | Hydro | 1.4 MW |
| Blind Canyon Hydro | Hydro | 1.3 MW |
| North Gooding Main Hydro | Hydro | 1.3 MW |
| AJMS, LLC | Hydro | 1.2 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 1.3 MW solar plant and a 1.3 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