Geismar CogenRetirement planned
Ascension County, Louisiana · EIA plant ID 56787 · Operator: Air Liquide Large Industries U S LP
Nameplate84MWSummer 73 MW
Generators1in service
Net generation528GWh12 mo to Dec 2025
Capacity factor83%gas/coal/oil units, summer MW
Heat rate4,464Btu/kWhfossil units, electric fuel, HHV
First online2000Runs as baseload
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2007 | 551.6 | 86.9% | 12,534 |
| 2008 | 607.9 | 95.5% | 11,591 |
| 2009 | 606.1 | 95.4% | 11,419 |
| 2010 | 593.7 | 93.5% | 12,571 |
| 2011 | 528.1 | 83.2% | 11,509 |
| 2012 | 253.6 | 39.8% | 25,769 |
| 2013 | 626 | 98.6% | 11,600 |
| 2014 | 289.5 | 45.6% | 11,605 |
| 2015 | 616.2 | 97.0% | 11,509 |
| 2016 | 604.8 | 95.0% | 4,374 |
| 2017 | 474.5 | 74.7% | 4,464 |
| 2018 | 609.5 | 96.0% | 4,464 |
| 2019 | 615.4 | 96.9% | 4,464 |
| 2020 | 613.7 | 96.4% | 4,464 |
| 2021 | 445.9 | 70.2% | 4,464 |
| 2022 | 583.7 | 91.9% | 4,464 |
| 2023 | 503.8 | 79.3% | 4,464 |
| 2024 | 585.7 | 92.0% | 4,464 |
| 2025 | 528.4 | 83.2% | 4,464 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| GTG | Natural Gas Fired Combustion Turbine | GT | 83.9 | 72.5 | Jan 2000 | Operating · retirement planned | Jun 2030 | coming soon |
Owner / operator
Operator: Air Liquide Large Industries U S LP. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Air Liquide Large Industries U S LP | 100.0% | 84 MW |
Nearby plants
Within 80 km.
| Geismar | 84 MW | 1.3 km |
| Shell Chemical | 80 MW | 2.5 km |
| PCS Nitrogen Fertilizer LP | 14 MW | 6.4 km |
| Carville Energy LLC | 555 MW | 7.4 km |
| Burnside Alumina Plant | retired | 11 km |
| Magnolia Power | 723 MW | 17.3 km |