Central 40
Stanislaus County, California · EIA plant ID 63940 · Operator: Central 40, LLC
Nameplate40MWSummer 40 MW
Generators1in service
Net generation72GWh12 mo to Aug 2026
Capacity factor20%solar units, summer MW
Heat rate—thermal plants only
First online2021
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 95 | 29.6% | — |
| 2022 | 88 | 25.1% | — |
| 2023 | 70 | 20.0% | — |
| 2024 | 68.5 | 19.5% | — |
| 2025 | 69.5 | 19.8% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| CEN40 | Solar Photovoltaic | PV | 40 | 40 | Feb 2021 | Operating | — | coming soon |
Owner / operator
Operator: Central 40, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Idemitsu Renewables | 100.0% | 40 MW |
Nearby plants
Within 80 km.
| Quinto Solar PV Project | 108 MW | 13.7 km |
| Paulsell | 35 MW | 14.5 km |
| Frontier Solar LLC | 20 MW | 15.1 km |
| Covanta Stanislaus Energy | retired | 15.8 km |
| ONeill | 25 MW | 17.1 km |
| Proxima | 352 MW | 17.9 km |