Chestnut is a hybrid solar and battery storage facility with 285.6 MW of EIA-reported operating capacity in Kings County, California, registered as EIA Plant ID 63849. Project filings list 563,640 solar panels and 60 inverters for the facility.
Mapped infrastructure geometry associated with this asset.
Batteries, Solar Photovoltaic
Chestnut is operating.
230 kV · Pacific Gas and Electric Company (PG&E)
CAISO
CAISO · Kings County
EIA plant 63849 · Inventory for Sep 2026.
| Generator | Technology | Status | Power (MW) | Energy (MWh) |
|---|---|---|---|---|
| BESS1 | Batteries | Operating | 135 | 540 |
| CHNUT | Solar Photovoltaic | Operating | 150.6 | 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 | 135 MW 135 MW summer | Batteries BA | Dec 2023 | Operating |
| CHNUT | 150.6 MW 150.6 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.
The Kings County environmental filing described a 150 MW solar generating station, 230-kV substation, and planned 12-month construction period commencing in 2020.
Chestnut Westside LLC transferred the project site to Castanea Project LLC by recorded grant deed.
EIA-860 lists generator BESS1, generator CHNUT with this operating date.
BEI Construction reported that SOLV Energy had awarded it technology-infrastructure contracts for the Chestnut project and that the work was underway.
Answered from the published record above. Questions whose inputs this profile does not carry are omitted rather than estimated.
Chestnut reports 135 MW battery storage + 150.6 MW solar of operating nameplate capacity. These technology ratings do not establish a common export limit. Source: EIA Sep 2026.
Chestnut is a Batteries, Solar Photovoltaic facility in Kings County, CA, participating in the CAISO market.
Chestnut is in Kings County, CA, inside the CAISO balancing area.
Chestnut is operated by Chestnut Westside LLC according to the EIA generator inventory. Reporting membership does not by itself establish ultimate ownership.
Chestnut reported 360 GWh over the twelve months to 2026-07. Figures are net generation as filed to EIA-923.
Chestnut interconnects at Gates Substation, on the Pacific Gas and Electric Company (PG&E) system.
By capacity, Chestnut ranks #282 of 7,597 operating plants of the same technology nationally. It ranks #48 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.
