Stage Gulch Solar
Sonoma County, California · EIA plant ID 61791 · Operator: Stage Gulch Solar, LLC
Nameplate1MWSummer 1 MW
Generators1in service
Net generation2GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2018
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) |
|---|---|---|---|
| 2018 | 1.9 | 35.3% | — |
| 2019 | 1.7 | 24.5% | — |
| 2020 | 1.6 | 23.4% | — |
| 2021 | 1.8 | 25.8% | — |
| 2022 | 1.8 | 25.4% | — |
| 2023 | 1.6 | 22.9% | — |
| 2024 | 1.5 | 20.7% | — |
| 2025 | 1.5 | 21.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 5001 | Solar Photovoltaic | PV | 1 | 0.8 | Apr 2018 | Operating | — | coming soon |
Owner / operator
Operator: Stage Gulch Solar, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Stage Gulch Solar, LLC | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Ellis Creek Solar | 4 MW | 2.8 km |
| Waste Mangement Redwood LFGTE | 4 MW | 6.5 km |
| Silveira Ranch Road Solar | 3 MW | 7.3 km |
| Cottonwood Solar, LLC Cottonwood Carport | 1 MW | 9.9 km |
| Lavio Solar | 1 MW | 10.8 km |
| Bodega Avenue Solar LLC | 2 MW | 17.7 km |