AES Alamitos LLC
Natural gas power plant · Los Angeles County, California
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- AES Alamitos LLC
- County
- Los Angeles County
- Generating units
- 3
- Share of state capacity
- 1.03%
- Rank among natural gas plants in California
- #4 of 309
- EIA plant code
- 315
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 5 | Natural Gas Steam Turbine | 495 MW | 480 MW | 1964 | Operating |
| 3 | Natural Gas Steam Turbine | 310 MW | 327 MW | 1961 | Operating |
| 4 | Natural Gas Steam Turbine | 310 MW | 335 MW | 1962 | 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
| Geysers Unit 5-20 | Other | 1,236 MW |
| La Paloma Generating Plant | Natural gas | 1,156 MW |
| Helms Pumped Storage | Hydro | 1,053 MW |
| Mountainview Generating Station | Natural gas | 1,037 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 1,115 MW solar plant and a 1,115 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