West Memphis Solar Station
Crittenden County, Arkansas · EIA plant ID 65482 · Operator: Entergy Arkansas Inc
Nameplate180MWSummer 180 MW
Generators1in service
Net generation306GWh12 mo to Aug 2026
Capacity factor19%solar units, summer MW
Heat rate—thermal plants only
First online2024
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) |
|---|---|---|---|
| 2024 | 14.9 | 11.2% | — |
| 2025 | 347.3 | 22.0% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| WMEM1 | Solar Photovoltaic | PV | 180 | 180 | Dec 2024 | Operating | — | coming soon |
Owner / operator
Operator: Entergy Arkansas Inc. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Entergy Arkansas Inc | 100.0% | 180 MW |
Nearby plants
Within 80 km.
| Chalk Bluff Solar | — | 16.1 km |
| Allen | 1,290 MW | 17.4 km |
| Big Cypress Solar, LLC | 180 MW | 20.9 km |
| Wildflower Solar, LLC (MS) | 100 MW | 24.5 km |
| TVA Southaven Combined Cycle | 904 MW | 30.7 km |
| Penton Solar Plant | — | 33.1 km |