McWilliams
McWilliams is a 654 MW natural gas power plant in Covington County, Alabama, operated by PowerSouth Energy Cooperative. EIA-860M lists 7 generating units here. Its units entered service between 1954 and 2002.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 654 MW
- 650 MW net summer
- Generating units
- 7
- In service
- 1954–2002
- EIA plant ID
- 533
Where it is
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- County
- Covington County, Alabama
- Coordinates
- 31.4003, -86.4764
- Balancing authority
- SOCO
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- PowerSouth Energy Cooperative
- Primary energy source
- Natural gas
- Technologies
- Natural Gas Fired Combined Cycle
- Status
- Operating
McWilliams: FAQ
- Where is McWilliams?
- In Covington County, Alabama (AL). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is McWilliams?
- 654 MW of nameplate capacity across 7 units, as of the EIA-860M release for 2026-07.
- Who owns McWilliams?
- EIA-860M names PowerSouth Energy Cooperative as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as McWilliams LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — PowerSouth Energy Cooperative here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "McWilliams LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is McWilliams still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.