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70.7 MW Batteries (33 MW) + Solar Photovoltaic (38 MW) operating in Kern, CA — California Independent System Operator
70.7 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2022
Operating Since
Coordinates
35.0164, -118.1225
County
Kern, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Terra-Gen Operating Co-Hybrid | Terra-Gen | — |
| Owner(s) | ES 1A Group 2 Opco, 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.
Edwards Sanborn S3 is a hybrid power plant located in Kern County, California. The plant, which came online in 2022, has a total capacity of 70.7 MW and is operated by Terra-Gen Operating Co-Hybrid. It utilizes both solar photovoltaic and battery storage technologies, with two generators on site. The battery energy storage system (BESS) has a capacity of 70 MWh and a duration of 2.12 hours, using lithium-ion battery chemistry (LIB). The solar component employs single-axis tracking.
The plant's latest annual generation was 83,773 MWh, resulting in a capacity factor of 13.5%. Edwards Sanborn S3 operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. It is ranked as the 138th largest plant in California out of 300, and 560th nationally out of 1205. Financial data is available for the plant from LBNL, though specific figures 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
3.6K MWh
Latest Month
83.8K MWh
Annual Generation
13.5%
Capacity Factor
Data from 2022–2024
$9.9/MWh
Energy Value
$8.7/MWh
Capacity Value
Market Position
ISO/RTO Market
CAISO
LMP Node
PHSP15
Pricing Hub
TH_SP15_GEN-APND
Node Source
EIA-860 direct report
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No ask pi reports yet for this entity.
ask pi about Edwards Sanborn S3California Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP