47.5 MW Geothermal operating in Imperial, CA — Imperial Irrigation District
47.5 MW
Nameplate Capacity
1
Generators
unit
Geothermal
Technology
1996
Operating Since
Coordinates
33.1570, -115.6386
County
Imperial, CA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | CalEnergy Operating Corporation | CalEnergy Operating | — |
| Owner(s) | CE Generation | Berkshire Hathaway | — |
| Status | Operating | operating | — |
Salton Sea Power Gen Co - Unit 4 is a 47.5 MW geothermal power plant located in Imperial County, California. The plant began operating in 1996 and has one generator. It is owned by Berkshire Hathaway and operated by CalEnergy Operating Corporation. The plant's primary fuel source is geothermal energy.
In the most recent year of reported data, Salton Sea Power Gen Co - Unit 4 generated 179,841 MWh of electricity, achieving a capacity factor of 42.9%. The plant operates within the Imperial Irrigation District balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Among geothermal plants in California, it ranks 16th out of 33 in size, and nationally it ranks 25th out of 70.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
Imperial Irrigation District
Grid Voltage
92 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
29.6K MWh
Latest Month
179.8K MWh
Annual Generation
42.9%
Capacity Factor
No financial data available for this plant.
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
Last updated 2026-03-26
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