Cosumnes Power Plant
Natural gas power plant · Sacramento County, California
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Sacramento Municipal Util Dist
- County
- Sacramento County
- Generating units
- 3
- Share of state capacity
- 0.52%
- Rank among natural gas plants in California
- #27 of 309
- EIA plant code
- 55970
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 2 | Natural Gas Fired Combined Cycle | 197 MW | 185 MW | 2006 | Operating |
| 1 | Natural Gas Fired Combined Cycle | 190 MW | 171 MW | 2006 | Operating |
| 3 | Natural Gas Fired Combined Cycle | 170 MW | 189 MW | 2006 | 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
| Topaz Solar Farm | Solar | 586 MW |
| Palomar Energy | Natural gas | 559 MW |
| Harbor | Natural gas | 548 MW |
| Rexford Solar Farm | Solar | 540 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 557 MW solar plant and a 557 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