45.6 MW Geothermal operating in Imperial, CA — Imperial Irrigation District
45.6 MW
Nameplate Capacity
3
Generators
units
Geothermal
Technology
1989
Operating Since
Coordinates
32.7757, -115.2637
County
Imperial, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Ormat Nevada Inc | — | — |
| Owner(s) | Ormat Nevada Inc | — | — |
| Status | Operating | operating | — |
Ormesa III is a 45.6 MW geothermal power plant located in Imperial County, California. The plant began operating in 1989 and is owned and operated by Ormat Nevada Inc. It utilizes geothermal technology for electricity generation. The plant consists of 3 generators and is interconnected to the Imperial Irrigation District balancing authority within the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year with available data, Ormesa III generated 44,416 MWh of electricity, resulting in a capacity factor of 11.1%. Ormesa III is ranked as the 17th largest geothermal plant in California (out of 33) and the 26th largest in the United States (out of 70). Recent news coverage of Ormesa III includes 2 articles related to deals and 1 article related to industry news.
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
4.7K MWh
Latest Month
44.4K MWh
Annual Generation
11.1%
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.
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Ormat enters new 25-year PPA for its Ormesa geothermal complex in California
Ormat Technologies entered intoa a 25-year Power Purchase Agreement with SCPPA to deliver a contract capacity of 35 MW from its Ormesa Geothermal Power Complex.
Last updated 2026-03-26
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