Shell Chemical
Natural gas power plant in Ascension Parish, Louisiana. 80 MW of nameplate capacity across 2 generators, operated by Shell Chemical LP - Geismar.
Also known as Shell Chemical Cogen · EIA plant 56248
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 80 MWNameplate
- Generators
- 2 operatingEIA-860M, August 2026
- Operating since
- August 2002First generator online
- Operator
- Shell Chemical LP - GeismarEIA operator ID 63888
- Grid
- MISOBalancing authority MISO
- Price nodes
- 1 MISO nodeResource nodes with prices
- Location
- Ascension Parish, LA30.1875, −90.9840
- EIA plant ID
- 56248EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Shell Chemical produces
Free · EIA-923Net generation, 2025
585 GWh
585,335 MWh, final
Capacity factor, 2025
83.5%
2024: 81.4%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
537.9–587.6
GWh a year. Low 2022, high 2019
| 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 | 0 | Not reported | 12 of 12 |
| 2005 | 582,962 | Not reported | 12 of 12 |
| 2006 | 535,114 | Not reported | 12 of 12 |
| 2007 | 190,297 | Not reported | 12 of 12 |
| 2008 | 571,492 | Not reported | 12 of 12 |
| 2009 | 575,788 | Not reported | 12 of 12 |
| 2010 | 596,438 | 85.1% | 12 of 12 |
| 2011 | 587,885 | 83.9% | 12 of 12 |
| 2012 | 558,081 | 79.4% | 12 of 12 |
| 2013 | 603,321 | 86.1% | 12 of 12 |
| 2014 | 557,243 | 79.5% | 12 of 12 |
| 2015 | 579,246 | 82.7% | 12 of 12 |
| 2016 | 574,969 | 81.8% | 12 of 12 |
| 2017 | 576,287 | 82.2% | 12 of 12 |
| 2018 | 559,232 | 79.8% | 12 of 12 |
| 2019 | 587,644 | 83.9% | 12 of 12 |
| 2020 | 581,070 | 82.7% | 12 of 12 |
| 2021 | 538,350 | 76.8% | 12 of 12 |
| 2022 | 537,858 | 76.7% | 12 of 12 |
| 2023 | 560,402 | 80.0% | 12 of 12 |
| 2024 | 572,325 | 81.4% | 12 of 12 |
| 2025 | 585,335 | 83.5% | 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 account · MISOEmissions
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 |
|---|---|---|---|
| 101G | Natural Gas Fired Combustion Turbine | 40.0 | August 2002 |
| 201G | Natural Gas Fired Combustion Turbine | 40.0 | August 2002 |
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 Shell Chemical LP - Geismar 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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Questions about Shell Chemical
How much power does Shell Chemical produce?
Shell Chemical reported 585,335 MWh (585 GWh) of net generation in 2025, a 83.5% capacity factor on 80 MW of nameplate capacity.
Where is Shell Chemical?
Shell Chemical is in Ascension Parish, Louisiana, at 30.1875, −90.9840. It is in the Midcontinent Independent Transmission System Operator, Inc.. balancing area (MISO).
Who operates Shell Chemical?
EIA-860M for August 2026 lists Shell Chemical LP - Geismar as the operator (EIA operator ID 63888). The operator is not always the owner.
When did Shell Chemical start operating?
Its first generator began operating in August 2002, according to EIA-860M.
Does InfraMap have power prices for Shell Chemical?
Yes. InfraMap has MISO day-ahead and real-time prices at 1 price node linked to Shell Chemical, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
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)
- MISO day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page