California Valley Solar Ranch
California Valley Solar Ranch is a 250 MW solar farm in San Luis Obispo County, California, operated by Clearway Energy Operating LLC. EIA-860M lists 5 generating units here, inside CAISO. Its units entered service between 2012 and 2013.
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
- 249.8 MW
- 249.8 MW net summer
- Generating units
- 5
- In service
- 2012–2013
- EIA plant ID
- 57439
Where it is
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- County
- San Luis Obispo County, California
- Coordinates
- 35.3237, -119.9166
- Balancing authority
- CISO
- Sector
- IPP Non-CHP
Units, technology and status
- Operator of record
- Clearway Energy Operating LLC
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
California Valley Solar Ranch: FAQ
- Where is California Valley Solar Ranch?
- In San Luis Obispo 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 California Valley Solar Ranch?
- 250 MW of nameplate capacity across 5 units, as of the EIA-860M release for 2026-07.
- Who owns California Valley Solar Ranch?
- EIA-860M names Clearway Energy Operating 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 California Valley Solar Ranch LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Clearway Energy Operating 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 "California Valley Solar Ranch LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is California Valley Solar Ranch still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.