McIntosh Combined Cycle Facility
Natural gas power plant · Effingham County, Georgia
Nameplate capacity
1,377 MW
Rank in Georgia
#6
of 264 plants
In service since
2005
June 2005
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Georgia Power Co
- County
- Effingham County
- Generating units
- 6
- Share of state capacity
- 3.20%
- Rank among natural gas plants in Georgia
- #2 of 29
- EIA plant code
- 56150
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 10ST | Natural Gas Fired Combined Cycle | 282 MW | 295 MW | 2005 | Operating |
| 11ST | Natural Gas Fired Combined Cycle | 282 MW | 295 MW | 2005 | Operating |
| C10A | Natural Gas Fired Combined Cycle | 203 MW | 182 MW | 2005 | Operating |
| C10B | Natural Gas Fired Combined Cycle | 203 MW | 182 MW | 2005 | Operating |
| C11A | Natural Gas Fired Combined Cycle | 203 MW | 181 MW | 2005 | Operating |
| C11B | Natural Gas Fired Combined Cycle | 203 MW | 181 MW | 2005 | Operating |
Nameplate is the maximum rated output; summer capacity is what the unit can reliably deliver on a hot day, which is typically lower.
Similarly sized plants in Georgia
| Scherer | Coal | 2,673 MW |
| Edwin I Hatch | Nuclear | 1,848 MW |
| Wansley Combined Cycle | Natural gas | 1,239 MW |
| Thomas A Smith Energy Facility | Natural gas | 1,192 MW |
About this data
From EIA’s inventory of operable generators, May 2026 release. Capacity is nameplate — the maximum rated output of the equipment, not what the plant actually generates over a year, which depends on how often it runs. A 1,377 MW solar plant and a 1,377 MW nuclear plant have the same entry here and produce very different amounts of electricity.
“In service since” is the earliest in-service date among the units still listed, so a site rebuilt around newer equipment can read as younger than the site itself. All Georgia power plants · What Georgia actually generates