Queen Creek Solar Farm
Maricopa County, Arizona · EIA plant ID 57883 · Operator: Siete Solar LLC
Nameplate19MWSummer 19 MW
Generators1in service
Net generation35GWh12 mo to Dec 2025
Capacity factor21%solar units, summer MW
Heat rate—thermal plants only
First online2012
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) |
|---|---|---|---|
| 2012 | 9.4 | 22.9% | — |
| 2013 | 53.3 | 32.7% | — |
| 2014 | 52.1 | 32.0% | — |
| 2015 | 50.7 | 31.1% | — |
| 2016 | 52.1 | 31.9% | — |
| 2017 | 51.2 | 31.4% | — |
| 2018 | 49.6 | 30.4% | — |
| 2019 | 47.6 | 29.2% | — |
| 2020 | 47.4 | 29.0% | — |
| 2021 | 48.6 | 29.8% | — |
| 2022 | 44.1 | 27.1% | — |
| 2023 | 46.4 | 28.5% | — |
| 2024 | 40.7 | 24.9% | — |
| 2025 | 34.8 | 21.3% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Solar Photovoltaic | PV | 19 | 18.6 | Oct 2012 | Operating | — | coming soon |
Owner / operator
Operator: Siete Solar LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Siete Solar LLC | 100.0% | 19 MW |
Nearby plants
Within 80 km.
| Banner Solar Ironwood | 1 MW | 7.4 km |
| Mesa Carport PV | 5 MW | 8.9 km |
| Pediment BESS I | 250 MW | 9.8 km |
| Santan | 1,326 MW | 14.7 km |
| Poseidon Solar, LLC | 20 MW | 16.8 km |
| Copper Crossing Energy Center | 153 MW | 17.3 km |