Arlington Energy Center III
Riverside County, California · EIA plant ID 64564 · Operator: Arlington Energy Center III
Nameplate241MWSummer 241 MW
Generators2in service
Net generation329GWh12 mo to Aug 2026
Capacity factor30%solar units, summer MW
Heat rate—thermal plants only
First online2022
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) |
|---|---|---|---|
| 2022 | 118.6 | 25.7% | — |
| 2023 | 290.1 | 26.9% | — |
| 2024 | 273.9 | 25.9% | — |
| 2025 | 320.9 | 29.7% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| AEC3 | Solar Photovoltaic | PV | 131 | 131 | Aug 2022 | Operating | — | coming soon |
| AEC3B | Batteries | BA | 110 | 110 | Aug 2022 | Operating | — | coming soon |
Owner / operator
Operator: Arlington Energy Center III. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Arlington Energy Center III | 100.0% | 241 MW |
Nearby plants
Within 80 km.
| Arlington Energy Center II | 365 MW | 0 km |
| Blythe Solar IV, LLC | 184 MW | 1.2 km |
| Blythe Solar 110, LLC | 173 MW | 3.3 km |
| McCoy Solar Energy Project Hybrid | 501 MW | 3.3 km |
| Blythe Solar II, LLC | 246 MW | 4.3 km |
| Blythe Solar III, LLC Hybrid | 252 MW | 4.9 km |