Muck Valley Hydroelectric
Hydro power plant · Lassen County, California
Nameplate capacity
30 MW
Rank in California
#569
of 1,897 plants
In service since
1988
December 1988
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- —
- County
- Lassen County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among hydro plants in California
- #79 of 244
- EIA plant code
- 10458
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Conventional Hydroelectric | 30 MW | 30 MW | 1988 | 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
| Top Gun Energy Storage | Battery storage | 30 MW |
| Vernon | Other | 30 MW |
| Tulloch | Hydro | 30 MW |
| Diamond Valley Lake | Hydro | 30 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 30 MW solar plant and a 30 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