Plaquemine Cogeneration Plant — Plant Summary
- EIA Plant ID
- 55419
- Capacity
- 1084.8 MW
- Primary Fuel
- Natural Gas
- Technology
- Natural Gas Fired Combined Cycle
- Status
- Operating
- Location
- Iberville, LA
- Operating Since
- 2004
- Generators
- 7
- Operator
- Dow Chemical Co
- Parent Company
- —
- Annual Generation
- 5,754,123 MWh
- Capacity Factor
- 60.6%
- Balancing Authority
- Midcontinent Independent Transmission System Operator, Inc..
- ISO/RTO
- MISO
- NERC Region
- SERC
Plaquemine Cogeneration Plant
OperatingNatural Gas
Ranked #4 of 52 Natural Gas plants in LA#144 of 2009 nationally
1084.8 MW Natural Gas operating in Iberville, LA — Midcontinent Independent Transmission System Operator, Inc..
EIAWD
1,084.8 MW
Nameplate Capacity
7
Generators
units
Natural Gas Fired Combined Cycle
Technology
2004
Operating Since
Location
Coordinates
30.3217, -91.2347
County
Iberville, LA
Nearby Plants
- Westlake PlaquemineNatural Gas306 MW · 8.5 km
- Magnolia PowerNatural Gas722.9 MW · 10.2 km
- LSU CogenNatural Gas19.6 MW · 11.1 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Dow Chemical Co | — | — |
| Owner(s) | Dow Chemical Co | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
The Plaquemine Cogeneration Plant is a 1084.8 MW natural gas-fired combined cycle power plant located in Iberville County, Louisiana. The plant began operating in 2004 and consists of 7 generators. It is owned and operated by Dow Chemical Co. The plant is the 5th largest in Louisiana out of 32 plants, and ranks 148th nationally out of 945 plants.
The Plaquemine Cogeneration Plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region. In the latest year of reported generation data, the plant produced 5,754,123 MWh of electricity, achieving a capacity factor of 60.6%. Recent news coverage of the plant includes 2 articles related to deals and 1 article related to industry news.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc..
Grid Voltage
230 kV
Regulatory Status
NR
Entity Type
Industrial
Sector
Industrial CHP
Generation
517.9K MWh
Latest Month
5.8M MWh
Annual Generation
60.6%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
HIGH confidenceMarket Position
ISO/RTO Market
MISO
LMP Node
EES,DOWCHEM
Pricing Hub
LOUISIANA.HUB
Node Source
EIA-860 direct report
News & Articles (10)Beta
Deals·other
Venture Global Plans $18B Expansion of Plaquemines LNG
Venture Global said it is expanding its Plaquemines LNG project in Louisiana with 24 trains and is planning to invest an additional $18 billion.
Venture Global (developer)
Rigzone·1 years ago
General
NORTH AMERICAN POWER PLANT - AIR EMISSIONS
No, Plant Name, Country, State /Province, Primary Fuel, Electricity Generation (MWh), Emission Rate (kg/MW-h), Total Emissions
Commission for Environmental Cooperation·1 years ago
General
GE 7HA.03 equipment to power 725 MW combined cycle plant in Louisiana
GE H-Class equipment will power a natural gas-fired combined cycle plant expected to be built in Plaquemine, Louisiana.
Power Engineering·3 years ago
Industry·technology
GE 7HA.03 equipment to power 725 MW combined cycle plant in Louisiana
GE H-Class equipment will power a natural gas-fired combined cycle plant expected to be built in Plaquemine, Louisiana.
GE (other)
Power Engineering·3 years ago
Last updated 2026-03-14
View all 10 articles