84.6 MW Batteries (40 MW) + Solar Photovoltaic (45 MW) operating in Kern, CA — California Independent System Operator
84.6 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2022
Operating Since
Coordinates
35.0277, -118.1328
County
Kern, CA
Nearby Plants
Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Terra-Gen Operating Co-Hybrid | Terra-Gen | — |
| Owner(s) | ES 1A Group 2 Opco, LLC | Terra-Gen [100%] | — |
| Status | Operating | operating | — |
GEM identifies the owner as Terra-Gen [100%]
This entity is not yet in the GEM ownership database — chain unavailable.
Edwards Sanborn S1 is a hybrid power plant located in Kern County, California. The facility, which came online in 2022, has a total capacity of 84.6 MW and is operated by Terra-Gen Operating Co-Hybrid. The plant utilizes both solar photovoltaic technology with single-axis tracking and battery energy storage. The battery energy storage system (BESS) has a capacity of 83.5 MWh and a duration of 2.09 hours, employing lithium-ion battery chemistry.
The plant's primary fuel source is electricity (MWH), indicating its hybrid nature. In its latest year of operation, Edwards Sanborn S1 generated 100,535 MWh, achieving a capacity factor of 13.5%. The plant operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region. Edwards Sanborn S1 is ranked 123 out of 300 power plants in California and 533 out of 1205 nationally. Financial data is available for the plant from LBNL Solar.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
4.5K MWh
Latest Month
100.5K MWh
Annual Generation
13.5%
Capacity Factor
$25.5/MWh
LCOE (Levelized Cost)
$9.9/MWh
Energy Value
Market Position
ISO/RTO Market
CAISO
LMP Node
PHSP15
Pricing Hub
TH_SP15_GEN-APND
Node Source
EIA-860 direct report