306 MW Natural Gas operating in Iberville, LA — Midcontinent Independent Transmission System Operator, Inc..
306 MW
Nameplate Capacity
3
Generators
units
Natural Gas Fired Combustion Turbine
Technology
1997
Operating Since
Coordinates
30.2586, -91.1850
County
Iberville, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Westlake Chemicals & Vinyls LLC | Westlake Chemicals & Vinyls | — |
| Owner(s) | Westlake Chemicals & Vinyls LLC | Westlake | — |
| Status | Operating | — | — |
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
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
119.8K MWh
Latest Month
1.5M MWh
Annual Generation
55.8%
Capacity Factor
No financial data available for this plant.
Market Position
ISO/RTO Market
MISO
LMP Node
EES.AXLPLQ
Pricing Hub
LOUISIANA.HUB
Location Type
Generation Node
Node Source
EIA-860 direct report
Last updated 2026-03-14
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