The AES Corporation · Tulare County · CAISO
Rexford Solar Farm is a hybrid solar and battery storage facility with 540 MW of EIA-reported total operating capacity and 960 MWh of reported storage energy capacity in Tulare County, California, registered as EIA Plant ID 64633. AES Clean Energy is the registered plant entity or operator. Commercial operation began on January 31, 2025.
Investigate technology, capacity, output, price behavior, ownership, and related facilities using this profile plus current grid data.
Reported plant capacity and configuration.
Primary generation technology.
AES Clean Energy · Tulare County · CAISO
Battery subsystem rating.
Rexford Solar Farm is operating.
230 kV · Southern California Edison (SCE)
Best-supported operating milestone.
In the first quarter of 2025, AES Renewable Holdings sold a noncontrolling interest in the Rexford project company to a tax-equity investor, producing an $82 million increase in noncontrolling interests.
Solar Photovoltaic, Batteries
4-hour storage duration
Rexford Solar Farm is operating.
Operating generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 20SD8 | 300 MW 300 MW summer | Solar Photovoltaic Solar · PV | Feb 2025 | Operating |
| 20SDB | 240 MW 240 MW summer | Batteries Electricity used for energy storage · BA | Feb 2025 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Deterministic links to ERCOT market resources, price records, outage disclosures, queue records, and nearby infrastructure. Candidate joins remain labeled until corroborated.
Source-backed project transactions, agreements, land records, permits, and environmental disclosures. Portfolio and adjacent-project facts remain explicitly scoped.
Parties, market resources, and identifiers tied to this asset, with owner, operator, developer, EPC, compliance provider, and interconnecting entity roles kept separate.
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Project milestones and public references behind the asset profile.
The original developer announced that construction was expected to begin in early 2022; this is a planned milestone rather than a separately documented construction-start date.
230 kV · Southern California Edison (SCE)
CAISO
CAISO · Tulare County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
| Largest reported plants | Capacity | State | |
|---|---|---|---|
| Rexford Solar FarmCurrent | 540 MW | CA | |
| McFarland B Solar and Storage | 450 MW | AZ | |
| McFarland A Solar and Storage | 300 MW | AZ | |
| Morris Solar | 250 MW | MO | |
| Chevelon Butte Wind Farm | 238.2 MW | AZ | |
| Baldy Mesa Solar & Storage | 225 MW | CA | |
| Chevelon Butte Phase 2 | 216 MW | AZ | |
| Raceway Solar & Storage | 205 MW | CA |
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
View full reporting portfolioRexford Solar Farm entered commercial operation.
AES identifies the Rexford solar-plus-storage facility as operational since February 2025.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Rexford Solar Farm has a reported capacity of 540 MW and an energy capacity of 960 MWh. Source: EIA Form 860.
Rexford Solar Farm is a Solar Photovoltaic, Batteries facility in Tulare County, CA, participating in the CAISO market.
Rexford Solar Farm is in Tulare County, CA, inside the CAISO balancing area.
Rexford Solar Farm is operated by AES Clean Energy according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Rexford Solar Farm reported 716 GWh over the twelve months to 2026-04. Figures are net generation as filed to EIA-923.
Rexford Solar Farm interconnects at Vestal Substation, on the Southern California Edison (SCE) system.
By capacity, Rexford Solar Farm ranks #38 of 7,234 operating plants of the same technology nationally. It ranks #6 of 939 in CA.
Plants within 25 km, nearest first, regardless of technology. Proximity is straight-line distance between mapped plant coordinates; it does not by itself establish a shared point of interconnection.
Similar plants ranked by technology, capacity, and distance.