Nameplate capacity
19 MW
Rank in Idaho
#68
of 155 plants
In service since
2009
March 2009
Details
- Primary fuel
- Wind
- Technology
- Onshore Wind Turbine
- Operator
- Cassia Gulch Wind Park, LLC
- County
- Twin Falls County
- Generating units
- 1
- Share of state capacity
- 0.29%
- Rank among wind plants in Idaho
- #25 of 33
- EIA plant code
- 56935
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Onshore Wind Turbine | 19 MW | 19 MW | 2009 | 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
| Simcoe Solar | Solar | 20 MW |
| Milner Dam Wind Park LLC | Wind | 20 MW |
| Upper Salmon A | Hydro | 18 MW |
| IFP Peaking Plant | Natural gas | 18 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 19 MW solar plant and a 19 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