McClain Energy Facility
Natural gas power plant in McClain County, Oklahoma. 551.3 MW of nameplate capacity across 3 generators, operated by Oklahoma Gas & Electric Co.
Also known as EIA plant 55457
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Key facts
- Capacity
- 551.3 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- June 2001First generator online
- Operator
- Oklahoma Gas & Electric CoEIA operator ID 14063
- Grid
- SPPBalancing authority SWPP
- Price nodes
- 1 SPP nodeResource nodes with prices
- Location
- McClain County, OK35.2977, −97.5898
- EIA plant ID
- 55457EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power McClain Energy Facility produces
Free · EIA-923Net generation, 2025
1.38 TWh
1,375,816 MWh, final
Capacity factor, 2025
28.5%
2024: 42.4%
January to July 2026
1.16 TWh
Provisional
Range, 2015 to 2025
1.4–3.9
TWh a year. Low 2025, high 2015
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | 662,375 | Not reported | 7 of 12 |
| 2002 | 1,453,860 | Not reported | 12 of 12 |
| 2003 | 1,407,670 | Not reported | 12 of 12 |
| 2004 | 2,444,840 | Not reported | 12 of 12 |
| 2005 | 2,815,410 | Not reported | 12 of 12 |
| 2006 | 3,084,116 | Not reported | 12 of 12 |
| 2007 | 2,660,957 | Not reported | 12 of 12 |
| 2008 | 2,332,453 | Not reported | 12 of 12 |
| 2009 | 3,468,569 | Not reported | 12 of 12 |
| 2010 | 3,118,546 | 76.0% | 12 of 12 |
| 2011 | 3,154,061 | 76.9% | 12 of 12 |
| 2012 | 3,772,616 | 91.7% | 12 of 12 |
| 2013 | 3,308,587 | Not reported | 12 of 12 |
| 2014 | 2,469,139 | Not reported | 12 of 12 |
| 2015 | 3,927,152 | Not reported | 12 of 12 |
| 2016 | 3,611,265 | 74.6% | 12 of 12 |
| 2017 | 3,713,104 | 76.9% | 12 of 12 |
| 2018 | 3,529,681 | 73.1% | 12 of 12 |
| 2019 | 2,956,466 | 61.2% | 12 of 12 |
| 2020 | 3,032,483 | 62.6% | 12 of 12 |
| 2021 | 2,208,570 | 45.7% | 12 of 12 |
| 2022 | 2,298,880 | 47.6% | 12 of 12 |
| 2023 | 2,583,740 | 53.5% | 12 of 12 |
| 2024 | 2,053,279 | 42.4% | 12 of 12 |
| 2025 | 1,375,816 | 28.5% | 12 of 12 |
| 2026 (provisional, partial year) | 1,156,346 | 41.2% | 7 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 · SPPEmissions
Free · EPA CAMPDCO₂, 2025
571,708
US short tons. 2024: 842,344
SO₂, 2025
3
US short tons
NOx, 2025
150
US short tons
CO₂ per MWh, calculated
0.42 t
About 831 lb per MWh
2 of 2 EPA units reported CO₂ in 2025 (CT1, CT2), matched to EIA plant 55457 through the EPA–EIA crosswalk. The per-MWh rate is EPA CO₂ divided by EIA-923 net generation. The two reporting boundaries can differ.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
516
million gallons
Consumption, 2024
431
million gallons
Source
Municipal
Discharge, Reclaimed. Induced-draft tower
Watershed stress
Moderate · 0.563
USGS SUI, HUC12 Pond Creek-Canadian River
12 of 12 cooling months report withdrawal. Reclaimed water or plant effluent; not tested. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| CT1 | Natural Gas Fired Combined Cycle | 176.6 | June 2001 |
| CT2 | Natural Gas Fired Combined Cycle | 176.6 | June 2001 |
| ST1 | Natural Gas Fired Combined Cycle | 198.1 | June 2001 |
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 Oklahoma Gas & Electric Co 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 McClain Energy Facility
More plants operated by Oklahoma Gas & Electric Co
Questions about McClain Energy Facility
How much power does McClain Energy Facility produce?
McClain Energy Facility reported 1,375,816 MWh (1.38 TWh) of net generation in 2025, a 28.5% capacity factor on 551.3 MW of nameplate capacity. From January to July 2026 it reported 1.16 TWh, which is provisional.
Where is McClain Energy Facility?
McClain Energy Facility is in McClain County, Oklahoma, at 35.2977, −97.5899. It is in the Southwest Power Pool balancing area (SWPP).
Who operates McClain Energy Facility?
EIA-860M for August 2026 lists Oklahoma Gas & Electric Co as the operator (EIA operator ID 14063). The operator is not always the owner.
When did McClain Energy Facility start operating?
Its first generator began operating in June 2001, according to EIA-860M.
Does InfraMap have power prices for McClain Energy Facility?
Yes. InfraMap has SPP day-ahead and real-time prices at 1 price node linked to McClain Energy Facility, 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)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- SPP day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page