Wistaria Ranch Solar
Imperial County, California · EIA plant ID 61750 · Operator: RWE Clean Energy
Nameplate107MWSummer 100 MW
Generators1in service
Net generation268GWh12 mo to Aug 2026
Capacity factor31%solar units, summer MW
Heat rate—thermal plants only
First online2018
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) |
|---|---|---|---|
| 2018 | 15.4 | 20.7% | — |
| 2019 | 292.6 | 33.4% | — |
| 2020 | 269.8 | 30.7% | — |
| 2021 | 258.8 | 29.5% | — |
| 2022 | 252.8 | 28.9% | — |
| 2023 | 273.1 | 31.2% | — |
| 2024 | 292 | 33.2% | — |
| 2025 | 288.9 | 33.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WICA | Solar Photovoltaic | PV | 106.7 | 100 | Dec 2018 | Operating | — | coming soon |
Owner / operator
Operator: RWE Clean Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| RWE Clean Energy | 100.0% | 107 MW |
Nearby plants
Within 80 km.
| Mount Signal Solar Farm II | 154 MW | 1.3 km |
| Centinela Solar Energy | 175 MW | 3 km |
| Imperial Valley Solar, LLC | 200 MW | 3 km |
| Imperial Solar Energy Center South | 129 MW | 3.9 km |
| Drew Solar LLC | 100 MW | 4.5 km |
| LeConte Energy Storage | 125 MW | 4.8 km |