Arroyo Solar Energy Storage Hybrid
McKinley County, New Mexico · EIA plant ID 63172 · Operator: Arroyo Solar LLC
Nameplate450MWSummer 450 MW
Generators2in service
Net generation735GWh12 mo to Aug 2026
Capacity factor29%solar units, summer MW
Heat rate—thermal plants only
First online2023
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), 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) |
|---|---|---|---|
| 2023 | 149.3 | — | — |
| 2024 | 700.3 | 27.3% | — |
| 2025 | 679 | 26.5% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| ARESS | Batteries | BA | 150 | 150 | Jul 2023 | Operating | — | coming soon |
| ARSOL | Solar Photovoltaic | PV | 300 | 300 | Jan 2024 | Operating | — | coming soon |
Owner / operator
Operator: Arroyo Solar LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Arroyo Solar LLC | 100.0% | 450 MW |
Nearby plants
Within 80 km.
| Shallow Basket | 190 MW | 38.7 km |
| Jicarilla Solar 2 | 50 MW | 40 km |
| Jicarilla Solar 1 LLC | 70 MW | 46.3 km |
| Cuba 2.5ac, LLC | 3 MW | 55.8 km |
| Escalante | retired | 77.4 km |
| Escalante (NM) | 200 MW | 78.1 km |