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35.5 MW Batteries (3 MW) + Natural Gas Fired Combined Cycle (33 MW) operating in San Diego, CA — California Independent System Operator
35.5 MW
Nameplate Capacity
4
Generators
units
Hybrid (2)
Technology
Batteries + Natural Gas Fired Combined Cycle
2001
Operating Since
Coordinates
32.8747, -117.2392
County
San Diego, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | University of California San Diego | — | — |
| Owner(s) | University of California San Diego | — | — |
| Status | Operating | — | — |
The University of California San Diego Hybrids plant is a 35.5 MW hybrid power plant located in San Diego County, California. The plant, which began operating in 2001, is owned and operated by the University of California San Diego. It utilizes natural gas-fired combined cycle technology in conjunction with battery storage. The battery energy storage system (BESS) has a capacity of 5 MWh and a duration of 2 hours, using lithium-ion battery chemistry.
The plant consists of 4 generators and primarily runs on natural gas. In the most recent year of data, the plant generated 206,760 MWh, achieving a capacity factor of 72.7%. The University of California San Diego Hybrids plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. It is ranked as the 154th largest power plant in California out of 297, and nationally it is ranked 1208 out of 1963 plants.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
California Independent System Operator (CISO)
Grid Voltage
69.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
State
Sector
Commercial CHP
17.9K MWh
Latest Month
206.8K MWh
Annual Generation
72.7%
Capacity Factor
CO₂ Intensity
713 lb/MWh
NOx
2 lb/MWh
SO₂
0.004 lb/MWh
CH₄
0.013 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
70.9%
Annual Net Gen
221 GWh
CO₂eq
714 lb/MWh
Subregion
WECC California
2013
$913/kW
Est. Construction Cost
Total estimated cost: $32.4M
Market Position
ISO/RTO Market
CAISO
LMP Node
UCM_6_N110
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-14
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