Fort Polk (fka Johnson) - Chaffee West
Vernon County, Louisiana · EIA plant ID 69733 · Operator: Onyx Asset Services Group
Nameplate5MWSummer 5 MW
Generators1in service
Net generation1GWh12 mo to Dec 2025
Capacity factor11%solar units, summer MW
Heat rate—thermal plants only
First online2025
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) |
|---|---|---|---|
| 2025 | 0.8 | 11.4% | — |
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 |
|---|---|---|---|---|---|---|---|---|
| 10637 | Solar Photovoltaic | PV | 4.5 | 4.5 | Nov 2025 | Operating | — | coming soon |
Owner / operator
Operator: Onyx Asset Services Group. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Onyx Asset Services Group | 100.0% | 5 MW |
Nearby plants
Within 80 km.
| Fort Polk (fka Johnson) - Chaffee East | 5 MW | 0.2 km |
| DeRidder Mill | 62 MW | 31.5 km |
| Toledo Bend | 81 MW | 35.9 km |
| Elizabeth Solar Plant | 143 MW | 37.9 km |
| Singer Solar | — | 46.8 km |
| Brame Energy Center | 1,707 MW | 56.4 km |