RS Cogen
Natural gas power plant · Calcasieu County, Louisiana
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Westlake 2 US LLC
- County
- Calcasieu County
- Generating units
- 3
- Share of state capacity
- 1.68%
- Rank among natural gas plants in Louisiana
- #14 of 53
- EIA plant code
- 55117
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| RS-5 | Natural Gas Fired Combined Cycle | 195 MW | 168 MW | 2002 | Operating |
| RS-6 | Natural Gas Fired Combined Cycle | 195 MW | 168 MW | 2002 | Operating |
| RS-4 | Natural Gas Fired Combined Cycle | 103 MW | 80 MW | 2002 | 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
| J Lamar Stall Unit | Natural gas | 624 MW |
| Carville Energy LLC | Natural gas | 555 MW |
| Big Cajun 1 | Natural gas | 493 MW |
| Waterford 1 & 2 | Natural gas | 487 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 493 MW solar plant and a 493 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