McClain Energy Facility
McClain County, Oklahoma · EIA plant ID 55457 · Operator: Oklahoma Gas & Electric Co
Nameplate551MWSummer 487 MW
Generators3in service
Net generation1,845GWh12 mo to Aug 2026
Capacity factor43%gas/coal/oil units, summer MW
Heat rate7,114Btu/kWhfossil units, electric fuel, HHV
First online2001Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
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 | 662.4 | — | — |
| 2002 | 1,453.9 | — | — |
| 2003 | 1,407.7 | 35.6% | 7,165 |
| 2004 | 2,444.8 | 61.7% | 7,101 |
| 2005 | 2,815.4 | 69.7% | 7,050 |
| 2006 | 3,084.1 | 76.4% | 7,878 |
| 2007 | 2,661 | 83.7% | 7,657 |
| 2008 | 2,332.5 | 56.5% | 7,044 |
| 2009 | 3,468.6 | 88.0% | 7,089 |
| 2010 | 3,118.5 | 79.1% | 7,480 |
| 2011 | 3,154.1 | 78.4% | 7,129 |
| 2012 | 3,772.6 | 93.5% | 6,986 |
| 2013 | 3,308.6 | 107.0% | 7,100 |
| 2014 | 2,469.1 | 76.1% | 7,161 |
| 2015 | 3,927.2 | 90.8% | 6,852 |
| 2016 | 3,611.3 | 83.5% | 6,871 |
| 2017 | 3,713.1 | 86.0% | 6,936 |
| 2018 | 3,529.7 | 82.7% | 6,958 |
| 2019 | 2,956.5 | 68.7% | 6,953 |
| 2020 | 3,032.5 | 70.3% | 6,922 |
| 2021 | 2,208.6 | 51.3% | 7,118 |
| 2022 | 2,298.9 | 53.4% | 7,133 |
| 2023 | 2,583.7 | 60.8% | 7,101 |
| 2024 | 2,053.3 | 48.0% | 7,078 |
| 2025 | 1,375.8 | 32.3% | 7,160 |
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 |
|---|---|---|---|---|---|---|---|---|
| CT1 | Natural Gas Fired Combined Cycle | CT | 176.6 | 156 | Jun 2001 | Operating | — | coming soon |
| CT2 | Natural Gas Fired Combined Cycle | CT | 176.6 | 156 | Jun 2001 | Operating | — | coming soon |
| ST1 | Natural Gas Fired Combined Cycle | CA | 198.1 | 175 | Jun 2001 | Operating | — | coming soon |
Owner / operator
Operator: Oklahoma Gas & Electric Co. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Oklahoma Gas & Electric Co | 77.0% | 425 MW |
| Oklahoma Municipal Power Authority | 23.0% | 127 MW |
Nearby plants
Within 80 km.
| Frontier | 131 MW | 11.8 km |
| University of Oklahoma | 19 MW | 16.6 km |
| Mustang | 465 MW | 20.6 km |
| Norman Solar | 2 MW | 22.3 km |
| Tinker | 178 MW | 23.5 km |
| Tuttle | 4 MW | 23.6 km |