Arsenal Hill
Natural gas power plant · Caddo County, Louisiana
Nameplate capacity
125 MW
Rank in Louisiana
#39
of 98 plants
In service since
1960
March 1960
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Steam Turbine
- Operator
- Southwestern Electric Power Co
- County
- Caddo County
- Generating units
- 1
- Share of state capacity
- 0.43%
- Rank among natural gas plants in Louisiana
- #28 of 53
- EIA plant code
- 1416
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 5 | Natural Gas Steam Turbine | 125 MW | 110 MW | 1960 | 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
| Prairie Ronde Solar Farm | Solar | 135 MW |
| New Orleans Power | Natural gas | 132 MW |
| Formosa Plastics | Natural gas | 101 MW |
| Hargis-Hebert Electric Generating | Natural gas | 101 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 125 MW solar plant and a 125 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