gridprims

Power plant · EIA plant code 533

McWilliams

Operator
PowerSouth Energy Cooperative
Location
Covington, AL (county level only)
Balancing authority
Southern Company Services, Inc. - Trans (SOCO)
Nameplate capacity
654 MW
Summer capacity
650 MW

U.S. Energy Information Administration · Annual Electric Generator Report (Form EIA-860) · data for 2025 · as of Sep 10, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Generation in 2025

Net generation
3,514,429 MWh
Capacity factor
61.3%

Capacity factor is net generation divided by nameplate capacity times the hours each generator was in service that year, counted by month.

U.S. Energy Information Administration · Power Plant Operations Report (Form EIA-923) · data for 2025 · as of Sep 11, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

Emissions

Carbon dioxide in 2023
1,449,343 metric tons
Carbon dioxide per MWh
956 lb/MWh

eGRID reports 1,597,627 short tons. One short ton is 0.90718474 metric tons.

Emissions are for 2023, the newest eGRID year. Generation is for 2025, the newest EIA-923 year.

U.S. Environmental Protection Agency · Emissions & Generation Resource Integrated Database (eGRID) · data for 2023 · as of Jun 16, 2025 · retrieved Oct 31, 2026 · CC-BY-4.0

Generators

Generators at McWilliams
GeneratorTechnologyEnergy sourceNameplateOperating sinceStatus
1Natural Gas Fired Combined CycleNG7.5 MW1954Operable · As of September 2026 (EIA-860M): (OP) Operating
2Natural Gas Fired Combined CycleNG7.5 MW1954Operable · As of September 2026 (EIA-860M): (OP) Operating
3Natural Gas Fired Combined CycleNG25 MW1959Operable · As of September 2026 (EIA-860M): (OP) Operating
4Natural Gas Fired Combined CycleNG107 MW1996Operable · As of September 2026 (EIA-860M): (OP) Operating
VAN1Natural Gas Fired Combined CycleNG165 MW2002Operable · As of September 2026 (EIA-860M): (OP) Operating
VAN2Natural Gas Fired Combined CycleNG165 MW2002Operable · As of September 2026 (EIA-860M): (OP) Operating
VAN3Natural Gas Fired Combined CycleNG177 MW2002Operable · As of September 2026 (EIA-860M): (OP) Operating

U.S. Energy Information Administration · Monthly Update to the Annual Electric Generator Report (Form EIA-860M) · data for 2026-09 · as of Oct 23, 2026 · retrieved Oct 31, 2026 · CC-BY-4.0

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