Isabella Hydro Project
Hydro power plant · Kern County, California
Nameplate capacity
12 MW
Rank in California
#807
of 1,897 plants
In service since
1990
December 1990
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Isabella Partners
- County
- Kern County
- Generating units
- 2
- Share of state capacity
- 0.01%
- Rank among hydro plants in California
- #110 of 244
- EIA plant code
- 10139
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 5.9 MW | 5.9 MW | 1990 | Operating |
| GEN2 | Conventional Hydroelectric | 5.9 MW | 5.9 MW | 1990 | 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 California
| RB Inyokern Solar WDAT 1281 (CSG) | Solar | 12 MW |
| H. Gonzales | Natural gas | 12 MW |
| Karen Avenue Wind Farm | Wind | 12 MW |
| CE Turbo LLC | Other | 12 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 12 MW solar plant and a 12 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 California power plants · What California actually generates