W&T Onshore Treating Facility (OTF)
Natural gas power plant in Mobile County, Alabama. 12 MW of nameplate capacity across 4 generators, operated by W&T Offshore Inc.
Also known as W&T Onshore Treating Facility Cogen · EIA plant 54550
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 12 MWNameplate
- Generators
- 4 operatingEIA-860M, August 2026
- Operating since
- September 1993First generator online
- Operator
- W&T Offshore IncEIA operator ID 57139
- Grid
- SOCOBalancing authority SOCO
- Price nodes
- None linkedNo verified ISO node
- Location
- Mobile County, AL30.4320, −88.1824
- EIA plant ID
- 54550EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power W&T Onshore Treating Facility (OTF) produces
Free · EIA-923Net generation, 2025
52.3 GWh
52,269 MWh, final
Capacity factor, 2025
49.7%
2024: 51.8%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2015 to 2025
47.6–88.8
GWh a year. Low 2023, high 2017
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 66,756 | Not reported | 12 of 12 |
| 2002 | 66,702 | Not reported | 12 of 12 |
| 2003 | 71,423 | Not reported | 12 of 12 |
| 2004 | 65,623 | Not reported | 12 of 12 |
| 2005 | 51,894 | Not reported | 12 of 12 |
| 2006 | 39,397 | Not reported | 12 of 12 |
| 2007 | 46,295 | Not reported | 12 of 12 |
| 2008 | 56,070 | Not reported | 12 of 12 |
| 2009 | 49,841 | Not reported | 12 of 12 |
| 2010 | 49,929 | 47.5% | 12 of 12 |
| 2011 | 55,290 | 52.6% | 12 of 12 |
| 2012 | 56,628 | 53.7% | 12 of 12 |
| 2013 | 65,915 | Not reported | 12 of 12 |
| 2014 | 71,749 | 68.3% | 12 of 12 |
| 2015 | 83,981 | 79.9% | 12 of 12 |
| 2016 | 83,285 | 79.0% | 12 of 12 |
| 2017 | 88,780 | 84.5% | 12 of 12 |
| 2018 | 88,024 | 83.7% | 12 of 12 |
| 2019 | 72,751 | 69.2% | 12 of 12 |
| 2020 | 63,167 | 59.9% | 12 of 12 |
| 2021 | 63,092 | 60.0% | 12 of 12 |
| 2022 | 57,303 | 54.5% | 12 of 12 |
| 2023 | 47,637 | 45.3% | 12 of 12 |
| 2024 | 54,636 | 51.8% | 12 of 12 |
| 2025 | 52,269 | 49.7% | 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 |
|---|---|---|---|
| 901 | Natural Gas Fired Combined Cycle | 0.9 | December 1993 |
| 901A | Natural Gas Fired Combined Cycle | 3.7 | September 1993 |
| 901B | Natural Gas Fired Combined Cycle | 3.7 | September 1993 |
| 901C | Natural Gas Fired Combined Cycle | 3.7 | September 1993 |
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 W&T Offshore Inc 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 W&T Onshore Treating Facility (OTF)
How much power does W&T Onshore Treating Facility (OTF) produce?
W&T Onshore Treating Facility (OTF) reported 52,269 MWh (52.3 GWh) of net generation in 2025, a 49.7% capacity factor on 12 MW of nameplate capacity.
Where is W&T Onshore Treating Facility (OTF)?
W&T Onshore Treating Facility (OTF) is in Mobile County, Alabama, at 30.4320, −88.1824. It is in the Southern Company Services, Inc. - Trans balancing area (SOCO).
Who operates W&T Onshore Treating Facility (OTF)?
EIA-860M for August 2026 lists W&T Offshore Inc as the operator (EIA operator ID 57139). The operator is not always the owner.
When did W&T Onshore Treating Facility (OTF) start operating?
Its first generator began operating in September 1993, 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)
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page