Eleven Mile Solar Center
Pinal County, Arizona · EIA plant ID 66263 · Operator: Eleven Mile Solar Center, LLC
Nameplate600MWSummer 600 MW
Generators2in service
Net generation767GWh12 mo to Aug 2026
Capacity factor—not meaningful for storage
Heat rate—thermal plants only
First online2024
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), primary-fuel units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
No capacity factor available.
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) |
|---|---|---|---|
| 2024 | 416.4 | — | — |
| 2025 | 792.6 | — | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1111 | Solar Photovoltaic | PV | 300 | 300 | Jun 2024 | Operating | — | coming soon |
| 2222 | Batteries | BA | 300 | 300 | Jun 2024 | Operating | — | coming soon |
Owner / operator
Operator: Eleven Mile Solar Center, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Eleven Mile Solar Center, LLC | 100.0% | 600 MW |
Nearby plants
Within 80 km.
| East Line Solar | 100 MW | 2.9 km |
| Central Line Solar, LLC | 100 MW | 3.7 km |
| Pinal Central Energy Center Hybrid | 30 MW | 4.1 km |
| Selma Energy Center | — | 6.4 km |
| Saint Energy Storage II LLC | 100 MW | 7.3 km |
| Sundance | 695 MW | 7.5 km |