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676 MW Natural Gas Fired Combustion Turbine (566 MW) + Natural Gas with Compressed Air Storage (110 MW) operating in Washington, AL — Southern Company Services, Inc. - Trans
676 MW
Nameplate Capacity
5
Generators
units
Hybrid (2)
Technology
Natural Gas Fired Combustion Turbine + Natural Gas with Compressed Air Storage
1991
Operating Since
Coordinates
31.2546, -88.0299
County
Washington, AL
Nearby Plants
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | PowerSouth Energy Cooperative | PowerSouth Energy Cooperative | — |
| Owner(s) | PowerSouth Energy Cooperative | PowerSouth Energy Cooperative | — |
| Status | Operating | — | — |
The McIntosh power plant, located in Washington County, Alabama, has a total capacity of 676 MW across five generators. The plant began operating in 1991 and is owned and operated by PowerSouth Energy Cooperative. It is fueled primarily by natural gas and utilizes both natural gas-fired combustion turbine technology and natural gas with compressed air storage, classifying it as a hybrid plant. The McIntosh plant operates within the Southern Company Services, Inc. - Trans balancing authority and the SERC NERC region.
In the most recent year with available data, the plant generated 256,376 MWh of electricity, resulting in a capacity factor of 4.3%. The McIntosh plant is ranked as the 14th largest power plant out of 21 in Alabama, and 340th out of 945 nationally.
Generated from EIA, GEM, and public data sources
Grid Region
Southeast
Market
SEEM Participant
NERC Region
SERC — SERC Reliability Corporation
Balancing Authority
Southern Company Services, Inc. - Trans (SOCO)
Grid Voltage
115.0 kV
Regulatory Status
RE — Regulated
Entity Type
Cooperative
Sector
Electric Utility
7.7K MWh
Latest Month
256.4K MWh
Annual Generation
4.3%
Capacity Factor
CO₂ Intensity
1337 lb/MWh
NOx
0.561 lb/MWh
SO₂
0.007 lb/MWh
CH₄
0.025 lb/MWh
N₂O
0.003 lb/MWh
Capacity Factor
12.6%
Annual Net Gen
746 GWh
CO₂eq
1339 lb/MWh
Subregion
SERC South
2013
$965/kW
Est. Construction Cost
Total estimated cost: $652.4M
This plant's balancing authority participates in the Southeast Energy Exchange Market (SEEM). SEEM is a bilateral exchange — no public nodal pricing.
Last updated 2026-04-09
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