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45.5 MW Geothermal operating in Imperial, CA
45.5 MW
Nameplate Capacity
1
Generators
unit
Geothermal
Technology
1988
Operating Since
Coordinates
33.1776, -115.6033
County
Imperial, CA
Nearby Plants
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| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | CalEnergy Operating Corporation | CalEnergy Operating | — |
| Owner(s) | CE Generation | Berkshire Hathaway | — |
| Status | Operating | operating | — |
The Elmore Company is a 45.5 MW geothermal power plant located in Imperial County, California. The plant began operating in 1988 and has one generator. It is owned by Berkshire Hathaway and operated by CalEnergy Operating Corporation. The plant's output is delivered within the Imperial Irrigation District balancing authority, which falls under the Western Electricity Coordinating Council (WECC) NERC region.
In the most recent year of reported data, the Elmore Company generated 104,325 MWh of electricity, achieving a capacity factor of 26.2%. The plant is ranked as the 18th largest geothermal plant in California out of 33 such plants, and nationally it is ranked 28th out of 70 geothermal plants.
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.
8.4K MWh
Latest Month
104.3K MWh
Annual Generation
26.2%
Capacity Factor
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CO₂ Intensity
89 lb/MWh
NOx
0.001 lb/MWh
SO₂
0.000 lb/MWh
CH₄
—
N₂O
—
Capacity Factor
90.2%
Annual Net Gen
359 GWh
CO₂eq
89 lb/MWh
Subregion
WECC Southwest
2013
$2,851/kW
Est. Construction Cost
Total estimated cost: $129.7M
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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 2026-04-09
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