Solar Blue is a hybrid solar and battery storage facility with 475 MW of EIA-reported total operating capacity and 900 MWh of reported storage energy capacity in Kings County, California, registered as EIA Plant ID 63848. Its grid role is hybrid solar generation with co-located battery storage used for storage arbitrage and frequency regulation.
Mapped infrastructure geometry associated with this asset.
Batteries, Solar Photovoltaic
4-hour storage duration
Solar Blue is operating.
CAISO
CAISO · Kings County
EIA plant 63848 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| BESS1 | Batteries | Operating | 225 | 900 |
| SBLUE | Solar Photovoltaic | Operating | 250 | Unknown |
Similar plants ranked by technology, capacity, and distance.
Current generator records and technology attributes reported through EIA-860.
| Generator | Capacity | Technology | Operation | Status |
|---|---|---|---|---|
| BESS1 | 225 MW 225 MW summer | Batteries BA | Dec 2023 | Operating |
| SBLUE | 250 MW 250 MW summer | Solar Photovoltaic PV | Dec 2023 | Operating |
Monthly EIA generation history and recent market-resource behavior where linked telemetry is available.
Monthly generation is reported through EIA-923. Capacity factor uses the current EIA nameplate capacity and is shown only for complete calendar years.
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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Portfolio membership follows the latest EIA-860 reporting entity. It does not imply ultimate ownership.
Project milestones and public references behind the asset profile.
Kings County's CEQA record, received on August 15, 2019, described the Solar Blue Project as a 250 MW solar generating facility on approximately 1,895 acres, to be constructed over an 18-month period beginning in 2020.
The Solar Blue CEQA description called for construction to commence in 2020.
EIA-860 lists generator BESS1, generator SBLUE with this operating date.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Solar Blue reports 225 MW battery storage + 250 MW solar of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Solar Blue is a Batteries, Solar Photovoltaic facility in Kings County, CA, participating in the CAISO market.
Solar Blue is in Kings County, CA, inside the CAISO balancing area.
Solar Blue is operated by Westlands Solar Blue according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Solar Blue reported 644.8 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Solar Blue interconnects at Solar Switching Station.
By capacity, Solar Blue ranks #86 of 7,597 operating plants of the same technology nationally. It ranks #17 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.
