California Valley Solar Ranch
San Luis Obispo County, California · EIA plant ID 57439 · Operator: clearway energy operating llc
Nameplate250MWSummer 250 MW
Generators5in service
Net generation559GWh12 mo to Dec 2025
Capacity factor26%solar units, summer MW
Heat rate—thermal plants only
First online2012
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), solar units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Heat rate applies to fuel-burning (thermal) units only.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2012 | 21.7 | 35.3% | — |
| 2013 | 399.4 | 26.3% | — |
| 2014 | 684.4 | 31.3% | — |
| 2015 | 688.3 | 31.4% | — |
| 2016 | 679.8 | 31.0% | — |
| 2017 | 647.5 | 29.6% | — |
| 2018 | 676.6 | 30.9% | — |
| 2019 | 584.8 | 26.7% | — |
| 2020 | 643.6 | 29.3% | — |
| 2021 | 690.6 | 31.6% | — |
| 2022 | 476.4 | 21.8% | — |
| 2023 | 623.8 | 28.5% | — |
| 2024 | 597.7 | 27.2% | — |
| 2025 | 558.7 | 25.5% | — |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| HPR2 | Solar Photovoltaic | PV | 32.3 | 32.3 | Oct 2013 | Operating | — | coming soon |
| HPR2A | Solar Photovoltaic | PV | 21 | 21 | Sep 2012 | Operating | — | coming soon |
| HPR2B | Solar Photovoltaic | PV | 86.5 | 86.5 | Jan 2013 | Operating | — | coming soon |
| HPR2C | Solar Photovoltaic | PV | 70 | 70 | Oct 2013 | Operating | — | coming soon |
| HPR2D | Solar Photovoltaic | PV | 40 | 40 | Jan 2013 | Operating | — | coming soon |
Owner / operator
Operator: clearway energy operating llc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| High Plains Ranch II, LLC | 100.0% | 250 MW |
Nearby plants
Within 80 km.
| Topaz Solar Farm | 586 MW | 16.5 km |
| Cymric 36W Cogen | 12 MW | 22.3 km |
| South Belridge Cogeneration Facility | 94 MW | 22.9 km |
| McKittrick Limited | 46 MW | 23.1 km |
| McKittrick Cogen | 12 MW | 23.3 km |
| Welport Lease Project | 5 MW | 23.4 km |