Dow St Charles Operations
Natural gas power plant · St Charles County, Louisiana
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Dow Chemical Co - St Charles
- County
- St Charles County
- Generating units
- 4
- Share of state capacity
- 1.11%
- Rank among natural gas plants in Louisiana
- #22 of 53
- EIA plant code
- 50152
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| CGN1 | Natural Gas Fired Combined Cycle | 126 MW | 100 MW | 1996 | Operating |
| CGN2 | Natural Gas Fired Combined Cycle | 126 MW | 100 MW | 1997 | Operating |
| CSTG | Natural Gas Fired Combined Cycle | 50 MW | 50 MW | 2002 | Operating |
| STG | Natural Gas Fired Combined Cycle | 22 MW | 20 MW | 1997 | 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
| Calcasieu | Natural gas | 359 MW |
| PPG Powerhouse C | Natural gas | 358 MW |
| Westlake Plaquemine | Natural gas | 306 MW |
| Oxbow Solar 1 | Solar | 300 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 324 MW solar plant and a 324 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