1000 MW Batteries (500 MW) + Solar Photovoltaic (500 MW) under construction in Kern, CA — California Independent System Operator
1,000 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
—
Operating Since
Coordinates
35.0630, -118.0878
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 | 50LW 8me LLC | Avantus | — |
| Owner(s) | 50LW 8me LLC | AES | — |
| Status | Under construction | construction | — |
Bellefield Solar and Energy Storage Farm is a hybrid power plant located in Kern County, California. The facility has a total capacity of 1,000 MW and is owned by AES. The operator listed with the EIA is 50LW 8me LLC. The plant utilizes both solar photovoltaic technology and batteries, with electricity measured in MWh listed as the primary fuel type. Bellefield operates within the California Independent System Operator (CAISO) balancing authority and the Western Electricity Coordinating Council (WECC) NERC region.
The plant consists of two generators and employs fixed-tilt solar tracking. Bellefield Solar and Energy Storage Farm is a significant facility within California, ranking as the second-largest of 112 power plants in the state and 12th-largest of 514 plants nationally. Recent news coverage includes 9 articles, with topics spanning industry trends, grid operations, and business deals.
Generated from EIA, GEM, and public data sources
NERC Region
WECC
Balancing Authority
California Independent System Operator
Grid Voltage
220 kV
Regulatory Status
NR
Entity Type
Independent Power Producer
Sector
IPP Non-CHP
0 MWh
Net Discharge
—
Annual Net Energy
—
Capacity Factor
Positive values indicate net discharge (generation exceeds station load). Negative values indicate net charging. Pure battery storage plants are typically net negative due to round-trip efficiency losses.
No financial data available for this plant.
Market Position
ISO/RTO Market
CAISO
LMP Node
BELLEF_7_CN01
Pricing Hub
TH_SP15_GEN-APND
Location Type
Pricing Node
Node Source
Curated node match
Last updated 2026-03-26
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