Wadham Energy
Other power plant · Colusa County, California
Nameplate capacity
29 MW
Rank in California
#573
of 1,897 plants
In service since
1989
March 1989
Details
- Primary fuel
- Other
- Technology
- Other Waste Biomass
- Operator
- Wadham Energy Ltd Partners
- County
- Colusa County
- Generating units
- 1
- Share of state capacity
- 0.03%
- Rank among other plants in California
- #42 of 152
- EIA plant code
- 50293
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| GEN1 | Other Waste Biomass | 29 MW | 27 MW | 1989 | 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
| Diamond Valley Lake | Hydro | 30 MW |
| CP Kelco San Diego Plant | Natural gas | 29 MW |
| Oxnard Paper Mill | Natural gas | 29 MW |
| Ridgetop Energy LLC | Wind | 29 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 29 MW solar plant and a 29 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