San Antonio West Solar Rooftop
Riverside County, California · EIA plant ID 57904 · Operator: SS San Antonio West LLC
Nameplate2MWSummer 2 MW
Generators1in service
Net generation2GWh12 mo to Dec 2025
Capacity factor17%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 | 1.4 | 25.5% | — |
| 2013 | 3.2 | 24.4% | — |
| 2014 | 3.1 | 23.3% | — |
| 2015 | 2.9 | 22.4% | — |
| 2016 | 2.7 | 20.2% | — |
| 2017 | 2.9 | 21.8% | — |
| 2018 | 2.8 | 21.5% | — |
| 2019 | 1.7 | 13.2% | — |
| 2020 | 2.4 | 18.6% | — |
| 2021 | 1.5 | 11.6% | — |
| 2022 | 1.5 | 11.7% | — |
| 2023 | 1.6 | 12.0% | — |
| 2024 | 1.7 | 13.0% | — |
| 2025 | 2.3 | 17.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CHNO | Solar Photovoltaic | PV | 1.5 | 1.5 | Aug 2012 | Operating | — | coming soon |
Owner / operator
Operator: SS San Antonio West LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| SS San Antonio West LLC | 100.0% | 2 MW |
Nearby plants
Within 80 km.
| CA Institute for Women | 1 MW | 2.7 km |
| OLS Energy Chino | 31 MW | 3.3 km |
| Solar Photovoltaic Project #02 | retired | 4.4 km |
| KP Ontario Vineyard Solar | 2 MW | 8.7 km |
| Kaiser Ontario | 1 MW | 8.8 km |
| Niagara Bottling Ontario PHI | 3 MW | 9.4 km |