RE Ajo 1 LLC
Pima County, Arizona · EIA plant ID 57795 · Operator: Duke Energy Renewables Services
Nameplate5MWSummer 5 MW
Generators1in service
Net generation9GWh12 mo to Dec 2025
Capacity factor23%solar units, summer MW
Heat rate—thermal plants only
First online2011
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) |
|---|---|---|---|
| 2011 | 2 | 12.0% | — |
| 2012 | 10.4 | 26.2% | — |
| 2013 | 10.2 | 26.0% | — |
| 2014 | 10.2 | 25.9% | — |
| 2015 | 9.2 | 23.4% | — |
| 2016 | 9.2 | 23.3% | — |
| 2017 | 8.5 | 21.5% | — |
| 2018 | 10.1 | 25.7% | — |
| 2019 | 8.5 | 21.5% | — |
| 2020 | 8.5 | 21.4% | — |
| 2021 | 8.6 | 21.8% | — |
| 2022 | 7 | 17.7% | — |
| 2023 | 9.1 | 23.1% | — |
| 2024 | 8.9 | 22.6% | — |
| 2025 | 9 | 22.9% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 1 | Solar Photovoltaic | PV | 4.5 | 4.5 | Aug 2011 | Operating | — | coming soon |
Owner / operator
Operator: Duke Energy Renewables Services. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Duke Energy Renewables Services | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Solana Generating Station | 280 MW | 62.8 km |
| Gila Bend Hybrid | 68 MW | 64 km |
| Gila River Power Block 1 | 619 MW | 68.8 km |
| Gila River Power Block 2 | 619 MW | 68.8 km |
| Gila River Power Station | 619 MW | 68.8 km |
| Gila River Power Block 3 | 619 MW | 68.8 km |