Geismar
Ascension County, Louisiana · EIA plant ID 10319 · Operator: BASF Corporation
Nameplate84MWSummer 80 MW
Generators3in service
Net generation626GWh12 mo to Dec 2025
Capacity factor89%gas/coal/oil units, summer MW
Heat rate5,093Btu/kWhfossil units, electric fuel, HHV
First online1985Runs 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) |
|---|---|---|---|
| 2001 | 634.7 | — | — |
| 2002 | 563.8 | — | — |
| 2003 | 649.9 | 101.8% | 4,604 |
| 2004 | 582.5 | 91.0% | 4,432 |
| 2005 | 614.6 | 96.2% | 4,432 |
| 2006 | 617.6 | 96.7% | 4,403 |
| 2007 | 619.9 | 86.3% | 4,432 |
| 2008 | 543.4 | 77.2% | 4,235 |
| 2009 | 595.4 | 84.9% | 4,221 |
| 2010 | 582.2 | 83.0% | 4,197 |
| 2011 | 568.1 | 81.0% | 4,184 |
| 2012 | 541.9 | 77.0% | 4,242 |
| 2013 | 640.8 | 91.3% | 4,256 |
| 2014 | 648.4 | 92.4% | 4,195 |
| 2015 | 629 | 84.5% | 4,432 |
| 2016 | 613.6 | 87.2% | 5,028 |
| 2017 | 634.9 | 90.5% | 5,199 |
| 2018 | 609.6 | 86.9% | 5,199 |
| 2019 | 631.7 | 90.0% | 5,197 |
| 2020 | 600.5 | 85.3% | 5,197 |
| 2021 | 562.4 | 80.2% | 5,200 |
| 2022 | 412 | 58.7% | 5,197 |
| 2023 | 584.4 | 83.3% | 5,196 |
| 2024 | 514.1 | 73.1% | 5,093 |
| 2025 | 625.6 | 89.1% | 5,093 |
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 |
|---|---|---|---|---|---|---|---|---|
| GEN1 | Natural Gas Fired Combustion Turbine | GT | 35.7 | 33.7 | Jul 1985 | Operating | — | coming soon |
| GEN2 | Natural Gas Fired Combustion Turbine | GT | 41.2 | 39.2 | Nov 1998 | Operating | — | coming soon |
| GEN3 | Natural Gas Steam Turbine | ST | 7.2 | 7.2 | Oct 2005 | Operating | — | coming soon |
Owner / operator
Operator: BASF Corporation. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| BASF Corporation | 100.0% | 84 MW |
Nearby plants
Within 80 km.
| Geismar Cogen | 84 MW | 1.3 km |
| Shell Chemical | 80 MW | 2.1 km |
| PCS Nitrogen Fertilizer LP | 14 MW | 6.1 km |
| Carville Energy LLC | 555 MW | 7 km |
| Burnside Alumina Plant | retired | 10.8 km |
| Magnolia Power | 723 MW | 16.8 km |