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248.9 MW Batteries (100 MW) + Solar Photovoltaic (149 MW) operating in Kern, CA
248.9 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2022
Operating Since
Coordinates
34.9436, -118.0880
County
Kern, CA
Nearby Plants
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Request a demo →| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Terra-Gen Operating Co-Hybrid | Terra-Gen | — |
| Owner(s) | EdSan 1B Group 1 Sanborn, LLC | Terra-Gen | — |
| Status | Operating | operating | — |
GEM identifies the owner as Terra-Gen
This entity is not yet in the GEM ownership database — chain unavailable.
Located in Kern County, California, the Edwards Sanborn E4 power plant is a hybrid facility combining solar photovoltaic generation with battery energy storage. The plant, owned and operated by Terra-Gen Operating Co-Hybrid, came online in 2022. It has a total capacity of 248.9 MW and consists of two generators utilizing both solar and battery technologies. The battery energy storage system (BESS) has a capacity of 100 MWh, a duration of 1 hour, and uses lithium-ion battery (LIB) chemistry. The solar component uses single-axis tracking.
The Edwards Sanborn E4 plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. In its latest year of operation, the plant generated 321,301 MWh, resulting in a capacity factor of 14.7%. The plant is ranked 52nd out of 112 power plants in California and 213th out of 514 plants nationally. Financial data is available for the plant from LBNL, though specific metrics are not provided.
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
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
14.5K MWh
Latest Month
321.3K MWh
Annual Generation
14.7%
Capacity Factor
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Request a demo →Data from 2022–2024
$10.0/MWh
Energy Value
$8.7/MWh
Capacity Value
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Request a demo →Market Position
ISO/RTO Market
CAISO
LMP Node
—
Pricing Hub
TH_SP15_GEN-APND
Node Source
Shared substation inference
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Top 10 solar states
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