- Combustion
- Operating
- 10 · 100 · 1,000 MW
Map
- Combustion
- Operating
McWilliams: location. Basemap: Protomaps, © OpenStreetMap contributors, ODbL.
McWilliams
Power plant · Gas, combined cycle
Key facts
Power plant · Gas, combined cycleran 61% of 2025 Operating- Capacity
- Capacity: sourceEIA-860M · Open licenseMW
- Commissioned
- 1954
- Net generation, 2025
- 3,514,429 MWh
- Grid
- 115 kV to PowerSouth Energy Cooperative (SOCO)
- Location
- Covington County, Alabama
- Operated by
- PowerSouth Energy CooperativeSourceEIA-860M Preliminary Monthly Electric Generator Inventory
Operations
- Net generation, 2025
- 3,514,429
MWh - Fuel burned, 2025
- 26,642,079
MMBtu - Capacity factor, 2025
- 61.3
% - Heat rate, 2025
- 7,581
Btu/kWh
| Year | Net generation (MWh) | Fuel burned (MMBtu) | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|---|
| 2026 (8 of 12 months) | 2,337,295 | 17,428,331 | — | 7,457 |
| 2025 | 3,514,429 | 26,642,079 | 61.3% | 7,581 |
| 2024 | 2,898,570 | 22,491,598 | 50.5% | 7,760 |
| 2023 (11 of 12 months) | 3,342,941 | 25,370,149 | — | 7,589 |
| 2022 | 3,895,666 | 29,700,524 | 68.0% | 7,624 |
| 2021 | 3,999,501 | 30,133,484 | 69.8% | 7,534 |
| 2020 | 4,158,113 | 30,970,570 | 72.4% | 7,448 |
| 2019 | 3,560,672 | 27,146,624 | 62.2% | 7,624 |
| 2018 | 3,957,129 | 29,698,368 | 69.1% | 7,505 |
| 2017 | 4,030,157 | 30,296,218 | 70.3% | 7,517 |
| 2016 | 3,816,606 | 28,840,734 | 66.4% | 7,557 |
| 2015 | 4,001,221 | 30,340,426 | 69.8% | 7,583 |
| 2014 | 3,193,339 | 23,994,502 | 55.7% | 7,514 |
| 2013 | 3,164,082 | 24,016,532 | 55.2% | 7,590 |
| 2012 | 3,192,485 | 24,668,245 | 55.6% | 7,727 |
| 2011 | 2,737,324 | 20,933,928 | 47.8% | 7,648 |
| 2010 | 2,834,294 | 22,008,648 | 49.5% | 7,765 |
| 2009 | 2,311,454 | 17,567,758 | 40.4% | 7,600 |
| 2008 | 1,114,766 | 8,999,626 | 19.4% | 8,073 |
| 2007 | 1,069,809 | 8,547,237 | 18.7% | 7,990 |
| 2006 | 1,157,926 | 9,104,873 | 20.2% | 7,863 |
| 2005 | 992,134 | 8,023,146 | 17.3% | 8,087 |
| 2004 | 1,343,074 | 10,880,513 | 23.4% | 8,101 |
| 2003 | 975,213 | 7,726,512 | 17.0% | 7,923 |
| 2002 | 1,855,549 | 14,658,812 | 32.4% | 7,900 |
| 2001 | 295,507 | 3,443,288 | 5.2% | 11,652 |
How these are worked out
Net generation and fuel burned are the monthly figures EIA publishes in its bulk electricity file, from the plant's Form 923 reports; a year is the sum of its months. Capacity factor is a full year's net generation over today's nameplate capacity times the hours in that year (8,784 in a leap year), so a plant uprated or partly retired since reads against its current size; heat rate is fuel burned over net generation, for plants that burn fuel. A year with fewer than twelve months stated has no capacity factor, and a value outside the plausible range is left blank rather than shown. By month, the charts apply the same rules to each month's own hours and fuel.