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540 MW Batteries (240 MW) + Solar Photovoltaic (300 MW) operating in Tulare, CA — California Independent System Operator
540 MW
Nameplate Capacity
2
Generators
units
Hybrid (2)
Technology
Batteries + Solar Photovoltaic
2025
Operating Since
Coordinates
35.8405, -119.0827
County
Tulare, 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 | AES Clean Energy | Avantus | — |
| Owner(s) | AES Clean Energy | Avantus | — |
| Status | Operating | operating | — |
GEM identifies the owner as Avantus
This entity is not yet in the GEM ownership database — chain unavailable.
Rexford Solar Farm is a 540 MW hybrid power plant located in Tulare County, California. The facility, which came online in 2025, is owned and operated by AES Clean Energy. The plant utilizes both solar photovoltaic technology and battery energy storage systems (BESS). The BESS component has a duration of 4 hours. Rexford Solar Farm is connected to the California Independent System Operator (CAISO) balancing authority within the Western Electricity Coordinating Council (WECC) region.
The plant's primary fuel source is solar energy (MWH). In its most recent year of operation, Rexford Solar Farm generated 658,185 MWh of electricity, achieving a capacity factor of 15.2%. The solar array employs a fixed-tilt tracking system. Rexford Solar Farm is the 7th largest solar plant in California out of 112, and ranks 55th nationally out of 514 facilities. The plant consists of 2 generators.
Generated from EIA, GEM, and public data sources
ISO/RTO
CAISO
Market
ISO/RTO Member
NERC Region
WECC — Western Electricity Coordinating Council
Balancing Authority
14.2K MWh
Latest Month
658.2K MWh
Annual Generation
15.2%
Capacity Factor
2023
$1,544/kW
Est. Construction Cost
Total estimated cost: $833.8M
Point of Interconnection
Nearest Substation
Vestal Substation · 220 kV
Substation Distance
0 km
Operator
Southern California Edison
Coord Source
OSM spatial
Market Position
ISO/RTO Market
CAISO
LMP Node
REXFRD_2_RSFBX2-APND
Pricing Hub
TH_ZP26_GEN-APND
Location Type
Aggregated Node
Node Source
Curated node match
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California Independent System Operator (CISO)
Grid Voltage
220.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Independent Power Producer
Sector
IPP Non-CHP