Lone Valley Solar Park I LLC
San Bernardino County, California · EIA plant ID 58417 · Operator: Lone Valley Solar Park I LLC
Nameplate10MWSummer 10 MW
Generators1in service
Net generation24GWh12 mo to Dec 2025
Capacity factor28%solar units, summer MW
Heat rate—thermal plants only
First online2014
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) |
|---|---|---|---|
| 2014 | 2.1 | 27.8% | — |
| 2015 | 25.1 | 28.6% | — |
| 2016 | 23 | 26.1% | — |
| 2017 | 23.8 | 27.2% | — |
| 2018 | 24.1 | 27.5% | — |
| 2019 | 23.8 | 27.2% | — |
| 2020 | 23 | 26.2% | — |
| 2021 | 22.6 | 25.9% | — |
| 2022 | 23.6 | 26.9% | — |
| 2023 | 23.8 | 27.1% | — |
| 2024 | 23.6 | 26.9% | — |
| 2025 | 24.2 | 27.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CP1 | Solar Photovoltaic | PV | 10 | 10 | Dec 2014 | Operating | — | coming soon |
Owner / operator
Operator: Lone Valley Solar Park I LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Lone Valley Solar Park I LLC | 100.0% | 10 MW |
Nearby plants
Within 80 km.
| Lone Valley Solar Park II LLC | 20 MW | 1.2 km |
| Sienna Solar Farm | — | 11.6 km |
| Sienna 2 Solar and Storage Project | — | 12.3 km |
| BBARWA | 2 MW | 15.2 km |
| Bear Valley Battery Plant | — | 16.5 km |
| Bear Valley Power Plant | 8 MW | 16.7 km |