Westlake Plaquemine

OperatingNatural Gas

Ranked #24 of 52 Natural Gas plants in LA#635 of 2009 nationally

306 MW Natural Gas operating in Iberville, LA — Midcontinent Independent Transmission System Operator, Inc..

EIAWD

306 MW

Nameplate Capacity

3

Generators

units

Natural Gas Fired Combustion Turbine

Technology

1997

Operating Since

Location

Coordinates

30.2586, -91.1850

County

Iberville, LA

Nearby Plants

Magnolia Power
Natural Gas722.9 MW · 2.1 km
Plaquemine Cogeneration Plant
Natural Gas1084.8 MW · 8.5 km
Carville Energy LLC
Natural Gas555 MW · 11.9 km

Ownership & Operator

Field	EIA	GEM	Wikidata
Operator	Westlake Chemicals & Vinyls LLC	Westlake Chemicals & Vinyls	—
Owner(s)	Westlake Chemicals & Vinyls LLC	Westlake	—
Status	Operating	—	—

Ownership Chain

About

Westlake Plaquemine is a 306 MW natural gas-fired power plant located in Iberville County, Louisiana. The plant began operating in 1997 and consists of three natural gas-fired combustion turbine generators. It is owned by Westlake and operated by Westlake Chemicals & Vinyls LLC. The plant's location places it within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC Reliability Corporation NERC region.

In the most recent year of data, Westlake Plaquemine generated 1,495,275 MWh of electricity, achieving a capacity factor of 55.8%. The plant is ranked as the 23rd largest in Louisiana out of 32 plants, and 636th nationally out of 945 plants. News coverage of the plant has included 7 articles, with 5 focused on hazards and 2 on regulatory matters.

Generated from EIA, GEM, and public data sources

EIA Plant Profile Wikidata

Engineering & Generators

Grid Context

NERC Region

SERC

Balancing Authority

Midcontinent Independent Transmission System Operator, Inc..

Grid Voltage

34.5 kV

Regulatory Status

NR

Entity Type

Industrial

Sector

Industrial CHP

Generation

119.8K MWh

Latest Month

1.5M MWh

Annual Generation

55.8%

Capacity Factor

Jan 2023 – Dec 2025

Financial Data

No financial data available for this plant.

Pricing & Market Data

HIGH confidence

Market Position

ISO/RTO Market

MISO

LMP Node

EES.AXLPLQ

Pricing Hub

LOUISIANA.HUB

Location Type

Generation Node

Node Source

EIA-860 direct report

News & Articles (10)Beta

General

Energy Vault Announces Acquisition of 175 MW Battery Energy Storage System Project in Texas

WESTLAKE VILLAGE, Calif., March 24, 2026--Energy Vault Holdings, Inc. (NYSE: NRGV) ("Energy Vault" or the "Company"), a global leader in...

Yahoo Finance·Yesterday

Hazards·fire

Fire now extinguished at Westlake Chemical in Iberville Parish, Louisiana

The Iberville Parish Government Office of Emergency Preparedness said there are no injuries, the situation is under control and there is no...

Westlake Chemical (other)Iberville Parish (other)

BIC Magazine·4 months ago

Hazards·fire

The Iberville Parish Government Office of Emergency Preparedness has been notified of an incident involving a fire at Westlake Chemical in Plaquemine. 🚨🚨 Our team has been in constant communication with Westlake personnel, and we have confirmed that

Iberville Parish Government Office of Emergency Preparedness (other)Westlake Chemical (other)

Facebook·4 months ago