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257.8 MW Batteries (120 MW) + Solar Photovoltaic (138 MW) operating in Kern, CA — California Independent System Operator
257.8 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2021
Operating Since
Coordinates
34.9415, -118.1290
County
Kern, CA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Terra-Gen Operating Co-Hybrid | Terra-Gen | — |
| Owner(s) | Terra-Gen Operating Co-Hybrid | 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 E2 is a hybrid power plant located in Kern County, California. The plant, which came online in 2021, is owned and operated by Terra-Gen Operating Co-Hybrid. It has a total capacity of 257.8 MW and consists of two generators utilizing both solar photovoltaic and battery storage technologies. The battery energy storage system (BESS) has a capacity of 250 MWh and a duration of 2.08 hours, employing lithium-ion battery chemistry (LIB). The solar component uses dual-axis tracking.
The 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, Edwards Sanborn E2 generated 300,808 MWh, resulting in a capacity factor of 13.3%. The plant is ranked as the 47th largest in California out of 112 plants and 190th nationally out of 514 plants. Financial data is available for the plant from LBNL, and it has been featured in 10 news articles, primarily covering industry and grid-related topics.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
12.9K MWh
Latest Month
300.8K MWh
Annual Generation
13.3%
Capacity Factor
Data from 2021–2024
$10.0/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
Last updated 2026-04-19
View all articlesCalifornia Independent System Operator (CISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP