Wister Solar
Imperial County, California · EIA plant ID 63487 · Operator: Wister Solar
Nameplate20MWSummer 20 MW
Generators1in service
Net generation33GWh12 mo to Dec 2025
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2022
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) |
|---|---|---|---|
| 2022 | 18.9 | 21.3% | — |
| 2023 | 29.7 | 16.9% | — |
| 2024 | 28.2 | 16.1% | — |
| 2025 | 33 | 18.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WSOL | Solar Photovoltaic | PV | 20 | 20 | Jul 2022 | Operating | — | coming soon |
Owner / operator
Operator: Wister Solar. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wister Solar | 100.0% | 20 MW |
Nearby plants
Within 80 km.
| Imperial Valley Solar Co (IVSC) 2, LLC | 20 MW | 2 km |
| Imperial Valley Solar Company 1 LLC | 23 MW | 2.7 km |
| Niland Gas Turbine Plant | 121 MW | 3.4 km |
| John L. Featherstone Plant | 55 MW | 9.7 km |
| Citizens Imperial Solar | 30 MW | 10.8 km |
| CE Turbo LLC | 12 MW | 11.4 km |