Sutter Home Winery GIR
Napa County, California · EIA plant ID 68624 · Operator: Westbound Solar 3, LLC
Nameplate1MWSummer 1 MW
Generators1in service
Net generation2GWh12 mo to Dec 2025
Capacity factor20%solar units, summer MW
Heat rate—thermal plants only
First online2023
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) |
|---|---|---|---|
| 2024 | 1.8 | 19.0% | — |
| 2025 | 1.9 | 20.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| SHGIR | Solar Photovoltaic | PV | 1.1 | 1.1 | Aug 2023 | Operating | — | coming soon |
Owner / operator
Operator: Westbound Solar 3, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Westbound Solar 3, LLC | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| American Canyon RV Boat Storage | — | 0.6 km |
| Coca Cola American Canyon | retired | 1.3 km |
| Dynamo Solar LLC | — | 4.9 km |
| Soscol Ferry Solar | 2 MW | 5.1 km |
| American Canyon Solar | 3 MW | 5.4 km |
| Kaiser Napa Valley Corporate Dr Fuel Cell | 5 MW | 6.9 km |