In Kings County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.

286 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.

EIA-860M names Chestnut Westside LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.

Is this the same as Chestnut LLC?

Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Chestnut Westside LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Chestnut LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.

Is Chestnut still running?

EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.

Chestnut

Chestnut is a 286 MW solar farm in Kings County, California, operated by Chestnut Westside LLC. EIA-860M lists 2 generating units here, inside CAISO. Its units entered service in 2023.

As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m

Nameplate capacity: 285.6 MW; 285.6 MW net summer
Generating units: 2
In service: 2023
EIA plant ID: 63849

Where it is

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County: Kings County, California
Coordinates: 36.1602, -119.9049
Balancing authority: CISO
Sector: IPP Non-CHP

Units, technology and status

Operator of record: Chestnut Westside LLC
Primary energy source: Solar
Technologies: Batteries, Solar Photovoltaic
Status: Operating

This site runs on more than one energy source. EIA-860M capacity splits: Solar 151 MW, Battery 135 MW. It is filed here under Solar, the source with the most capacity.

Every plant Chestnut Westside LLC reports to EIA →

Chestnut: FAQ

Where is Chestnut?: In Kings County, California (CA). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
How big is Chestnut?: 286 MW of nameplate capacity across 2 units, as of the EIA-860M release for 2026-07.
Who owns Chestnut?: EIA-860M names Chestnut Westside LLC as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
Is this the same as Chestnut LLC?: Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Chestnut Westside LLC here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Chestnut LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
Is Chestnut still running?: EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.