Westlake Plaquemine
26100 Hwy 405, Plaquemine, LA 70765Plant Summary Information
Westlake Plaquemine is ranked #20 out of 85 power plants in Louisiana in terms of total annual net electricity generation.
Westlake Plaquemine is comprised of 3 generators and generated 354.6 GWh during the 3-month period between November 2025 to February 2026.
| Plant Name | Westlake Plaquemine |
|---|---|
| Utility Name | Westlake Chemicals & Vinyls LLC |
| Location | Iberville Parish, LA |
| Initial Operation Date | May 1997 |
| Last Update | Feb 2026 |
| Annual Generation | 1.5 TWh |
| Annual Consumption | 20.0 M MMBtu |
| Ranked #603 out of 12,637 Power Plants Nationwide | |
| Ranked #381 out of 2,243 Natural Gas Power Plants Nationwide | |
| Ranked #20 out of 85 Louisiana Power Plants | |
| Ranked #15 out of 55 Louisiana Natural Gas Power Plants | |
| Fuel Types | Natural Gas : 98.6% Other Gas : 1.4% |
| Previous Operator |
Axiall Corp (2013 to 2021) Westlake Chemicals & Vinyls LLC (2022 to 2024) |
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Monthly Net Generation for Westlake Plaquemine
Monthly Plant Fuel Consumption for Westlake Plaquemine
Westlake Plaquemine Details
| Summary Information | |
|---|---|
| Plant Name | Westlake Plaquemine (55051) |
| Plant Address | 26100 Hwy 405, Plaquemine, LA 70765 |
| Utility | Westlake Chemicals & Vinyls LLC (65195) |
| Latitude, Longitude | 30.2586, -91.185 |
| Generation Dates on File | Jan 2001 to Feb 2026 |
| Initial Operation Date | May 1997 |
| Annual Generation | 1.5 TWh |
| Fuel Types | Natural Gas : 98.6% Other Gas : 1.4% |
| Federal Energy Regulatory Commission (FERC) Information | |
| FERC Cogeneration Status | Yes |
| FERC Cogeneration Docket Number | 96-53-000; '96-583-000 |
| FERC Small Power Producer Status | No |
| FERC Exempt Wholesale Generator Status | No |
| Regulatory Information | |
|---|---|
| Regulatory Status | Non-Regulated |
| NERC Region | SERC |
| Balancing Authority | Midcontinent Independent Transmission System Operator, Inc.. (MISO) |
| NAICS Code | (325188) |
| Sector | Industrial CHP (7) |
| Water Source | |
| Ash Impoundment | No |
| Transmission / Distribution Owner | Entergy Louisiana LLC (11241) LA |
| Grid Voltage | 34.50 kV |
| Energy Storage | No |
| Natural Gas Information | |
| Pipeline Name |
ACADIAN GAS P L SYS BRIDGELINE HOLDINGS LP |
| Natural Gas Storage | No |
| Liquefied Natural Gas Storage | No |
Generator X773 Details Operating May 1997
| Technology | Natural Gas Fired Combustion Turbine |
|---|---|
| Prime Mover | Combustion Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | EES.AXLPLQ |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EES.AXLPLQ |
| Nameplate Capacity | 102 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 75 MW |
| Winter Capacity | 90 MW |
| Minimum Load | 58 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | May 1997 |
| Combined Heat & Power | Yes |
|---|---|
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas |
| Startup Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Other Planned Modifications | Yes |
| Other Modifications | October 2026 |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | No |
| Multifuel Details | |
| Cofire Energy Source | NG / OG |
|---|---|
Generator X774 Details Operating May 1997
| Technology | Natural Gas Fired Combustion Turbine |
|---|---|
| Prime Mover | Combustion Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | EES.AXLPLQ |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EES.AXLPLQ |
| Nameplate Capacity | 102 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 75 MW |
| Winter Capacity | 90 MW |
| Minimum Load | 58 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | May 1997 |
|---|---|
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas |
| Startup Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | No |
| Multifuel Details | |
| Cofire Energy Source | NG / OG |
|---|---|
Generator X775 Details Operating May 1997
| Technology | Natural Gas Fired Combustion Turbine |
|---|---|
| Prime Mover | Combustion Turbine |
| Ownership | Single Owner |
| RTO ISO LMP Node Designation | EES.AXLPLQ |
| RTO ISO Location Designation For Reporting Wholesale Sales Data | EES.AXLPLQ |
| Nameplate Capacity | 102 MW |
| Nameplate Power Factor | 0.85 |
| Summer Capacity | 75 MW |
| Winter Capacity | 90 MW |
| Minimum Load | 58 MW |
| Uprate/Derate Completed | No |
| Status | Operating |
| First Operation Date | May 1997 |
|---|---|
| Combined Heat & Power | Yes |
| Sector Name | Industrial CHP (7) |
| Topping Or Bottoming | T |
| Energy Source | Natural Gas / Other Gas |
| Startup Source | Natural Gas |
| Solid Fuel Gasification | No |
| Carbon Capture Technology | No |
| Time From Cold Shutdown To Full Load | 12H |
| Multiple Fuels | Yes |
| Cofire Fuels | Yes |
| Switch Between Oil And Natural Gas | No |
| Multifuel Details | |
| Cofire Energy Source | NG / OG |
|---|---|
Westlake Plaquemine Plant Owners
| Owner Name | Address | Generator | Ownership | We couldn't locate any owners for this plant |
|---|
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Nearby Power Plants
Below are closest 20 power plants surrounding Westlake Plaquemine.
| Plant Name | Plant Location | Annual Generation | Distance |
|---|---|---|---|
| Atlantic Alumina, Gramercy Operations | Gramercy, LA | 208.1 GWh | 33.9 mi |
| Big Cajun 1 | Jarreau, LA | 151.0 GWh | 30.4 mi |
| Carville Energy LLC | St Gabriel, LA | 3.0 TWh | 7.4 mi |
| ExxonMobil Baton Rouge Turbine Generator | Baton Rouge, LA | 653.6 GWh | 16 mi |
| Formosa Plastics | Baton Rouge, LA | 402.4 GWh | 16.6 mi |
| Geismar | Geismar, LA | 514.1 GWh | 11.8 mi |
| Geismar Cogen | Geismar, LA | 585.7 GWh | 12 mi |
| LA3 West Baton Rouge Solar Facility | West Baton Rouge, LA | 113.0 GWh | 16.7 mi |
| LaO Energy Systems | Plaquemine, LA | 1.4 TWh | 5 mi |
| Louisiana 1 | Baton Rouge, LA | 2.6 TWh | 16.1 mi |
| Louisiana Sugar Refining | Gramercy, LA | 20.4 GWh | 33.2 mi |
| LSU Cogen | Baton Rouge, LA | 63.1 GWh | 10.5 mi |
| Magnolia Power | Plaquemine, LA | 867.0 GWh | 1.3 mi |
| Mosaic Phosphates Uncle Sam | Uncle Sam, LA | 88.9 GWh | 26.2 mi |
| Oxbow Solar 1 | New Roads, LA | 559.7 GWh | 30.8 mi |
| Plaquemine Cogeneration Plant | Plaquemine, LA | 5.7 TWh | 5.3 mi |
| Port Allen (LA) | Port Allen, LA | 43.4 GWh | 15.2 mi |
| Shell Chemical | Geismar, LA | 572.3 GWh | 13 mi |
| St Francisville Mill | St. Francisville, LA | 110.3 GWh | 32.3 mi |
| St. James Solar (LA) | Vacherie, LA | 45.4 GWh | 33.4 mi |