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19 MW Geothermal operating in Imperial, CA
19 MW
Nameplate Capacity
2
Generators
units
Geothermal
Technology
2003
Operating Since
Coordinates
32.8156, -115.2568
County
Imperial, CA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Ormat Nevada Inc | — | — |
| Owner(s) | Ormat Nevada Inc | — | — |
| Status | Operating | — | — |
Ormesa I is a 24 MW geothermal power plant located in Imperial County, California. The plant, which began operating in 2003, is owned and operated by Ormat Nevada Inc. It consists of two generators utilizing geothermal technology and its primary fuel source is geothermal energy (GEO). Ormesa I is connected 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 I generated 70,228 MWh of electricity, achieving a capacity factor of 33.3%. The plant ranks 24th out of 33 power plants in California and 48th out of 70 geothermal plants nationally.
Generated from EIA, GEM, and public data sources
Grid Region
California (non-ISO)
Market
Bilateral Market
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
Imperial Irrigation District (IID)
Grid Voltage
92.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
7.4K MWh
Latest Month
70.2K MWh
Annual Generation
33.3%
Capacity Factor
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CO₂ Intensity
0 lb/MWh
NOx
0.000 lb/MWh
SO₂
0.000 lb/MWh
CH₄
—
N₂O
—
Capacity Factor
44.0%
Annual Net Gen
102 GWh
CO₂eq
0.000 lb/MWh
Subregion
WECC Southwest
2013
$2,851/kW
Est. Construction Cost
Total estimated cost: $68.4M
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This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-03-26
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