Marin Clean Energy Solar One
Contra Costa County, California · EIA plant ID 61013 · Operator: AES Distributed Energy
Nameplate11MWSummer 11 MW
Generators1in service
Net generation21GWh12 mo to Dec 2025
Capacity factor23%solar units, summer MW
Heat rate—thermal plants only
First online2017
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) |
|---|---|---|---|
| 2017 | 0.5 | 6.3% | — |
| 2018 | 20.2 | 22.0% | — |
| 2019 | 20.2 | 22.0% | — |
| 2020 | 20.5 | 22.2% | — |
| 2021 | 21.1 | 22.9% | — |
| 2022 | 22.5 | 24.5% | — |
| 2023 | 19.9 | 21.7% | — |
| 2024 | 21.3 | 23.1% | — |
| 2025 | 21.2 | 23.1% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| MCES1 | Solar Photovoltaic | PV | 10.5 | 10.5 | Dec 2017 | Operating | — | coming soon |
Owner / operator
Operator: AES Distributed Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| AES Distributed Energy | 100.0% | 11 MW |
Nearby plants
Within 80 km.
| Richmond Cogen | 174 MW | 1.3 km |
| Nove Power Plant | 3 MW | 2.5 km |
| CA Dept of Public Health at Richmond | 2 MW | 4 km |
| Bio-Rad | 2 MW | 12.5 km |
| PE Berkeley | 29 MW | 13 km |
| Phillips 66 Carbon Plant | retired | 14.9 km |