Banner Solar Ironwood
Pinal County, Arizona · EIA plant ID 68433 · Operator: Imperator Solar, LLC
Nameplate1MWSummer 1 MW
Generators1in service
Net generation4GWh12 mo to Dec 2025
Capacity factor32%solar units, summer MW
Heat rate—thermal plants only
First online2021
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) |
|---|---|---|---|
| 2024 | 3.8 | 31.0% | — |
| 2025 | 4 | 32.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 4761 | Solar Photovoltaic | PV | 1.4 | 1.4 | Dec 2021 | Operating | — | coming soon |
Owner / operator
Operator: Imperator Solar, LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Imperator Solar, LLC | 100.0% | 1 MW |
Nearby plants
Within 80 km.
| Queen Creek Solar Farm | 19 MW | 7.4 km |
| Poseidon Solar, LLC | 20 MW | 9.7 km |
| Copper Crossing Energy Center | 153 MW | 10.1 km |
| Mesa Carport PV | 5 MW | 15.2 km |
| Pediment BESS I | 250 MW | 16.2 km |
| Box Canyon (AZ) | 300 MW | 19.3 km |