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1084.8 MW Natural Gas operating in Iberville, LA — Midcontinent Independent Transmission System Operator, Inc..
1,084.8 MW
Nameplate Capacity
7
Generators
units
Natural Gas Fired Combined Cycle
Technology
2004
Operating Since
Coordinates
30.3217, -91.2347
County
Iberville, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Dow Chemical Co | — | — |
| Owner(s) | Dow Chemical Co | — | — |
| Status | Operating | — | — |
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
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
230.0 kV
Regulatory Status
NR — Non-Regulated
Entity Type
Industrial
Sector
Industrial CHP
517.9K MWh
Latest Month
5.8M MWh
Annual Generation
60.6%
Capacity Factor
CO₂ Intensity
705 lb/MWh
NOx
0.103 lb/MWh
SO₂
0.002 lb/MWh
CH₄
0.015 lb/MWh
N₂O
0.002 lb/MWh
Capacity Factor
57.5%
Annual Net Gen
4969 GWh
CO₂eq
705 lb/MWh
Subregion
SERC Mississippi Valley
2013
$965/kW
Est. Construction Cost
Total estimated cost: $1.0B
Market Position
ISO/RTO Market
MISO
LMP Node
EES,DOWCHEM
Pricing Hub
LOUISIANA.HUB
Node Source
EIA-860 direct report
Last updated 2026-04-09
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