Bellefield Solar and Energy Storage Farm
The AES CorporationKern County
Bellefield Solar and Energy Storage Farm is a hybrid solar and battery storage facility with 1,000 MW of EIA-reported total operating capacity and 4,000 MWh of reported storage energy capacity in Kern County, California, registered as EIA Plant ID 64210. The AES Corporation is the current owner; 50LW 8me LLC is the registered plant entity or operator. In June 2023, AES and Avantus described Bellefield as the largest permitted solar-plus-storage project in the United States.
Mapped infrastructure geometry associated with this asset.
Batteries, Solar Photovoltaic
4-hour storage duration
Bellefield Solar and Energy Storage Farm is operating.
230 kV · Southern California Edison (SCE)
EIA plant 64210 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| 50LWA | Solar Photovoltaic | Operating | 500 | Unknown |
| 50LWB | Batteries | Operating | 500 | 2,000 |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| 50LWA | 500 MW 500 MW summer | Solar Photovoltaic PV | Dec 2025 | Operating |
| 50LWB | 500 MW 500 MW summer | Batteries BA | Dec 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.
Drag organizations to explore the network. Select a node to pin its details and available page link.
Project milestones and public references behind the asset profile.
AES announced its acquisition of the 2 GW Bellefield project from Avantus. The project was in late-stage development, with two 500 MW solar phases and up to 500 MW of four-hour battery storage per phase.
CAISO
CAISO · Kern County
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
AES announced completion of construction of the 1,000 MW Bellefield 1 phase. The phase-one project is under a 15-year contract with Amazon, and Bellefield 2 was on track for completion in 2026.
EIA-860 lists generator 50LWA, generator 50LWB with this operating date.
AES reported that construction of Bellefield 2 was expected to be completed in 2026.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Bellefield Solar and Energy Storage Farm reports 500 MW solar + 500 MW battery storage of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Bellefield Solar and Energy Storage Farm is a Batteries, Solar Photovoltaic facility in Kern County, CA, participating in the CAISO market.
Bellefield Solar and Energy Storage Farm is in Kern County, CA, inside the CAISO balancing area.
Bellefield Solar and Energy Storage Farm is operated by 50LW 8me LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Bellefield Solar and Energy Storage Farm reported 639.1 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Bellefield Solar and Energy Storage Farm interconnects at Southern California Edison (SCE) Windhub Substation, on the Southern California Edison (SCE) system.
By capacity, Bellefield Solar and Energy Storage Farm ranks #10 of 7,597 operating plants of the same technology nationally. It ranks #2 of 972 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.