Wilmot Energy Center LLC
Pima County, Arizona · EIA plant ID 64426 · Operator: Wilmot Energy Center LLC
Nameplate160MWSummer 130 MW
Generators2in service
Net generation267GWh12 mo to Aug 2026
Capacity factor31%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 | 197 | 30.1% | — |
| 2022 | 281.2 | 32.4% | — |
| 2023 | 269.2 | 31.1% | — |
| 2024 | 243.1 | 27.9% | — |
| 2025 | 268.6 | 30.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WIL | Solar Photovoltaic | PV | 130 | 100 | Apr 2021 | Operating | — | coming soon |
| WILBA | Batteries | BA | 30 | 30 | Apr 2021 | Operating | — | coming soon |
Owner / operator
Operator: Wilmot Energy Center LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Wilmot Energy Center LLC | 100.0% | 160 MW |
Nearby plants
Within 80 km.
| Roadrunner Reserve Phase 2 | 200 MW | 7.5 km |
| Avalon Solar II | 16 MW | 7.8 km |
| Roadrunner Reserve Phase 1 | 200 MW | 7.9 km |
| Avalon Solar | 29 MW | 7.9 km |
| Iron Horse Battery Storage Hybrid | 12 MW | 9.2 km |
| TJX Tucson | 1 MW | 9.3 km |