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388.3 MW Batteries (30 MW) + Natural Gas Fired Combined Cycle (277 MW) + Natural Gas Steam Turbine (82 MW) operating in Imperial, CA — Imperial Irrigation District
388.3 MW
Nameplate Capacity
7
Generators
units
Hybrid (3)
Technology
Batteries + Natural Gas Fired Combined Cycle + Natural Gas Steam Turbine
1952
Operating Since
Coordinates
32.8001, -115.5400
County
Imperial, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Imperial Irrigation District | Imperial Irrigation District | — |
| Owner(s) | Imperial Irrigation District | Imperial Irrigation District | — |
| Status | Operating | — | — |
El Centro Hybrid is a hybrid power plant located in Imperial County, California. The plant, owned and operated by Imperial Irrigation District, has a total capacity of 388.3 MW across 7 generators. It utilizes a combination of natural gas-fired combined cycle, natural gas steam turbine, and battery storage technologies. The battery energy storage system (BESS) has a capacity of 20 MWh and a duration of 0.67 hours, utilizing lithium-ion battery (LIB) chemistry. The plant operates within the Imperial Irrigation District balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The El Centro Hybrid plant began operating in 1952. Its latest annual generation was 1,089,743 MWh, resulting in a capacity factor of 32.0%. The plant is ranked as the 35th largest in California out of 76 plants, and 555th nationally out of 945 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
RE — Regulated
Entity Type
Political Subdivision
Sector
Electric Utility
58.3K MWh
Latest Month
1.1M MWh
Annual Generation
32.0%
Capacity Factor
CO₂ Intensity
1034 lb/MWh
NOx
0.198 lb/MWh
SO₂
0.005 lb/MWh
CH₄
0.019 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
32.0%
Annual Net Gen
1087 GWh
CO₂eq
1035 lb/MWh
Subregion
WECC Southwest
2013
$965/kW
Est. Construction Cost
Total estimated cost: $374.8M
This plant is in a bilateral market territory without organized wholesale pricing. Nodal pricing data is not available.
Last updated 2026-03-14
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