Geismar Cogen
Natural gas power plant in Ascension Parish, Louisiana. 83.9 MW of nameplate capacity across 1 generator, operated by Air Liquide Large Industries U S LP.
Also known as EIA plant 56787
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 83.9 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- January 2000First generator online
- Operator
- Air Liquide Large Industries U S LPEIA operator ID 327
- Grid
- MISOBalancing authority MISO
- Price nodes
- None linkedNo verified ISO node
- Location
- Ascension Parish, LA30.2090, −90.9921
- EIA plant ID
- 56787EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Geismar Cogen produces
Free · EIA-923Net generation, 2025
528 GWh
528,387 MWh, final
Capacity factor, 2025
71.9%
2024: 79.5%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
445.9–616.2
GWh a year. Low 2021, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | 551,557 | Not reported | 12 of 12 |
| 2008 | 607,941 | Not reported | 12 of 12 |
| 2009 | 606,073 | Not reported | 12 of 12 |
| 2010 | 593,668 | 80.8% | 12 of 12 |
| 2011 | 528,116 | 71.9% | 12 of 12 |
| 2012 | 253,618 | 37.6% | 11 of 12 |
| 2013 | 626,039 | 85.2% | 12 of 12 |
| 2014 | 289,532 | 39.4% | 12 of 12 |
| 2015 | 616,191 | 83.8% | 12 of 12 |
| 2016 | 604,761 | 82.1% | 12 of 12 |
| 2017 | 474,535 | 64.6% | 12 of 12 |
| 2018 | 609,515 | 82.9% | 12 of 12 |
| 2019 | 615,407 | 83.7% | 12 of 12 |
| 2020 | 613,715 | 83.3% | 12 of 12 |
| 2021 | 445,862 | 60.7% | 12 of 12 |
| 2022 | 583,730 | 79.4% | 12 of 12 |
| 2023 | 503,841 | 68.6% | 12 of 12 |
| 2024 | 585,715 | 79.5% | 12 of 12 |
| 2025 | 528,387 | 71.9% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| GTG | Natural Gas Fired Combustion Turbine | 83.9 | January 2000 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Air Liquide Large Industries U S LP as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Geismar Cogen
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Questions about Geismar Cogen
How much power does Geismar Cogen produce?
Geismar Cogen reported 528,387 MWh (528 GWh) of net generation in 2025, a 71.9% capacity factor on 83.9 MW of nameplate capacity.
Where is Geismar Cogen?
Geismar Cogen is in Ascension Parish, Louisiana, at 30.2090, −90.9921. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Geismar Cogen?
EIA-860M for August 2026 lists Air Liquide Large Industries U S LP as the operator (EIA operator ID 327). The operator is not always the owner.
When did Geismar Cogen start operating?
Its first generator began operating in January 2000, according to EIA-860M.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page