Heber Geothermal
Other power plant · Imperial County, California
Nameplate capacity
92 MW
Rank in California
#302
of 1,897 plants
In service since
2006
June 2006
Details
- Primary fuel
- Other
- Technology
- Geothermal
- Operator
- ORCAL Geothermal, Inc
- County
- Imperial County
- Generating units
- 5
- Share of state capacity
- 0.08%
- Rank among other plants in California
- #9 of 152
- EIA plant code
- 54689
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| OEC1 | Geothermal | 27 MW | 18 MW | 2023 | Operating |
| OEC2 | Geothermal | 27 MW | 18 MW | 2023 | Operating |
| 4 | Geothermal | 19 MW | 13 MW | 2018 | Operating |
| OEC11 | Geothermal | 16 MW | 12 MW | 2023 | Operating |
| 3 | Geothermal | 3.5 MW | 3.0 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
| Coso Finance Partners | Other | 92 MW |
| Hanford Energy Park Peaker | Natural gas | 92 MW |
| Springbok 3 Solar Farm Hybrid | Solar | 92 MW |
| Alta Wind XI | Wind | 90 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 92 MW solar plant and a 92 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