Westlake Plaquemine
Natural gas power plant · Iberville County, Louisiana
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combustion Turbine
- Operator
- Westlake Chemicals & Vinyls LLC
- County
- Iberville County
- Generating units
- 3
- Share of state capacity
- 1.05%
- Rank among natural gas plants in Louisiana
- #23 of 53
- EIA plant code
- 55051
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| X773 | Natural Gas Fired Combustion Turbine | 102 MW | 75 MW | 1997 | Operating |
| X774 | Natural Gas Fired Combustion Turbine | 102 MW | 75 MW | 1997 | Operating |
| X775 | Natural Gas Fired Combustion Turbine | 102 MW | 75 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
| PPG Powerhouse C | Natural gas | 358 MW |
| Dow St Charles Operations | Natural gas | 324 MW |
| Oxbow Solar 1 | Solar | 300 MW |
| Lieberman | Natural gas | 228 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 306 MW solar plant and a 306 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