Arlington Valley Solar Energy I
Maricopa County, Arizona · EIA plant ID 57679 · Operator: RWE Clean Energy
Nameplate127MWSummer 125 MW
Generators1in service
Net generation214GWh12 mo to Aug 2026
Capacity factor47%solar units, summer MW
Heat rate—thermal plants only
First online2026
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.
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 |
|---|---|---|---|---|---|---|---|---|
| AVSE1 | Solar Photovoltaic | PV | 127 | 125 | Apr 2026 | Operating | — | coming soon |
Owner / operator
Operator: RWE Clean Energy. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| RWE Clean Energy | 100.0% | 127 MW |
Nearby plants
Within 80 km.
| Arlington Valley Energy Facility | 713 MW | 2.4 km |
| Mesquite Generating Station Block 1 | 692 MW | 3 km |
| Mesquite Generating Station Block 2 | 692 MW | 3 km |
| Mesquite Solar 2, LLC | 100 MW | 3.1 km |
| Mesquite Solar 1 | 170 MW | 3.1 km |
| Mesquite Solar 5, LLC | 120 MW | 3.5 km |