Colton Solar One, LLC
San Bernardino County, California · EIA plant ID 59597 · Operator: Colton Solar One, LLC
Nameplate3MWSummer 3 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2015
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) |
|---|---|---|---|
| 2015 | 2.4 | 18.8% | — |
| 2016 | 4.9 | 22.5% | — |
| 2017 | 4.5 | 20.3% | — |
| 2018 | 4.3 | 19.5% | — |
| 2019 | 4.6 | 20.8% | — |
| 2020 | 4.4 | 19.9% | — |
| 2021 | 4.7 | 21.7% | — |
| 2022 | 4.7 | 21.6% | — |
| 2023 | 2.3 | 10.4% | — |
| 2024 | 3 | 13.7% | — |
| 2025 | 4.1 | 18.8% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CS001 | Solar Photovoltaic | PV | 2.5 | 2.5 | Jun 2015 | Operating | — | coming soon |
Owner / operator
Operator: Colton Solar One, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Colton Solar One, LLC | 100.0% | 3 MW |
Nearby plants
Within 80 km.
| Rialto - High School | 1 MW | 3.3 km |
| SB Water Reclamation Fuel Cell | 1 MW | 3.6 km |
| IGS SBD2 | 3 MW | 4.1 km |
| Chambers 4 - San Bernardino SNA7 | 2 MW | 4.7 km |
| RPUWD Scheuer Well Solar Project | 3 MW | 4.7 km |
| Drews Generating Facility | 45 MW | 4.8 km |