Lake Herman
Solano County, California · EIA plant ID 64676 · Operator: Greenbacker Renewable Energy Corporation
Nameplate5MWSummer 5 MW
Generators1in service
Net generation8GWh12 mo to Dec 2025
Capacity factor18%solar units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2021 | 1.2 | 16.3% | — |
| 2022 | 8.6 | 19.7% | — |
| 2023 | 13.1 | 29.9% | — |
| 2024 | 13 | 29.7% | — |
| 2025 | 8 | 18.2% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 359 | Solar Photovoltaic | PV | 5 | 5 | Nov 2021 | Operating | — | coming soon |
Owner / operator
Operator: Greenbacker Renewable Energy Corporation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Greenbacker Renewable Energy Corporation | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Valero Refinery Cogeneration Unit 1 | 50 MW | 2.6 km |
| Martinez Sulfuric Acid Regeneration Plt | 4 MW | 7.7 km |
| Crockett Cogen Project | 247 MW | 7.9 km |
| C&H Sugar Plant | 8 MW | 8.1 km |
| SFDK Solar | 6 MW | 8.8 km |
| Martinez Refining | 100 MW | 9.3 km |