Apache Solar I
Cochise County, Arizona · EIA plant ID 60964 · Operator: Arizona Electric Pwr Coop Inc
Nameplate40MWSummer 40 MW
Generators3in service
Net generation55GWh12 mo to Dec 2025
Capacity factor32%solar units, summer MW
Heat rate—thermal plants only
First online2017
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) |
|---|---|---|---|
| 2017 | 13 | 29.5% | — |
| 2018 | 49.9 | 28.5% | — |
| 2019 | 52 | 29.7% | — |
| 2020 | 55 | 31.3% | — |
| 2021 | 53.3 | 30.4% | — |
| 2022 | 55.1 | 31.5% | — |
| 2023 | 55.3 | 31.6% | — |
| 2024 | 55.5 | 31.6% | — |
| 2025 | 55.4 | 31.6% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| AEPB1 | Batteries | BA | 10 | 10 | Jun 2024 | Operating | — | coming soon |
| AEPS1 | Solar Photovoltaic | PV | 20 | 20 | Oct 2017 | Operating | — | coming soon |
| TRIB1 | Batteries | BA | 10 | 10 | Jun 2024 | Operating | — | coming soon |
Owner / operator
Operator: Arizona Electric Pwr Coop Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Sierra Southwest Cooperative | 100.0% | 40 MW |
Nearby plants
Within 80 km.
| Apache Station | 782 MW | 0.9 km |
| Sulphur Springs | 20 MW | 2.8 km |
| Roadrunner Solar and BESS | 470 MW | 4.7 km |
| THREE SISTERS Solar Generation and BESS | — | 6.5 km |
| Winchester Solar I, LLC | — | 14.4 km |
| Winchester Solar II, LLC | — | 16.2 km |