Upper Gorge
Hydro power plant · Mono County, California
Nameplate capacity
38 MW
Rank in California
#529
of 1,897 plants
In service since
1953
June 1953
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Los Angeles Department of Water & Power
- County
- Mono County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among hydro plants in California
- #75 of 244
- EIA plant code
- 407
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | 38 MW | 37 MW | 1953 | 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
| Friant Hydro Facility | Hydro | 38 MW |
| Middle Gorge | Hydro | 38 MW |
| Chula Vista Energy Center | Natural gas | 37 MW |
| FPL Energy Montezuma Winds LLC | Wind | 37 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 38 MW solar plant and a 38 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