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154.1 MW Natural Gas Fired Combustion Turbine (122 MW) + Natural Gas Steam Turbine (32 MW) operating in Ascension, LA — Midcontinent Independent Transmission System Operator, Inc..
154.1 MW
Nameplate Capacity
5
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combustion Turbine + Natural Gas Steam Turbine
1985
Operating Since
Coordinates
30.2000, -91.0000
County
Ascension, LA
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | BASF Corporation | — | — |
| Owner(s) | BASF Corporation | — | — |
| Status | Operating | — | — |
The Geismar power plant is a 154.1 MW hybrid natural gas facility located in Ascension County, Louisiana. It began operating in 1985 and is owned and operated by BASF Corporation. The plant utilizes both natural gas-fired combustion turbine and natural gas steam turbine technologies across its five generators. Geismar operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and the SERC NERC region.
In the most recent year of data, the plant generated 514,066 MWh of electricity, achieving a capacity factor of 38.0%. Geismar is the 26th largest power plant in Louisiana out of 32, and ranks 819th nationally out of 945 plants. News coverage of the plant includes 5 articles related to industry topics, 3 on regulatory matters, and 2 concerning hazards.
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
44.2K MWh
Latest Month
514.1K MWh
Annual Generation
38.0%
Capacity Factor
CO₂ Intensity
641 lb/MWh
NOx
2 lb/MWh
SO₂
0.018 lb/MWh
CH₄
0.012 lb/MWh
N₂O
0.001 lb/MWh
Capacity Factor
79.3%
Annual Net Gen
584 GWh
CO₂eq
642 lb/MWh
Subregion
SERC Mississippi Valley
2013
$965/kW
Est. Construction Cost
Total estimated cost: $148.7M
Market Position
ISO/RTO Market
MISO
LMP Node
EES.GEISMAR
Pricing Hub
LOUISIANA.HUB
Location Type
Generation Node
Node Source
Curated node match
Last updated 2026-03-26
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