Fort Polk (fka Johnson) - Chaffee West
Solar power plant · Vernon County, Louisiana
Nameplate capacity
4.5 MW
Rank in Louisiana
#92
of 98 plants
In service since
2025
November 2025
Details
- Primary fuel
- Solar
- Technology
- Solar Photovoltaic
- Operator
- Onyx Asset Services Group
- County
- Vernon County
- Generating units
- 1
- Share of state capacity
- 0.02%
- Rank among solar plants in Louisiana
- #16 of 19
- EIA plant code
- 69733
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 10637 | Solar Photovoltaic | 4.5 MW | 4.5 MW | 2025 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Louisiana
| Fort Polk (fka Johnson) - Chaffee East | Solar | 5.0 MW |
| Eunice LA Plant | Natural gas | 4.7 MW |
| Neptune Gas Processing Plant | Other | 4.5 MW |
| PPG Plant C Caustic | Natural gas | 3.4 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 4.5 MW solar plant and a 4.5 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Louisiana power plants · What Louisiana actually generates