Jack McDonough
Natural gas power plant · Cobb County, Georgia
Nameplate capacity
2,848 MW
Rank in Georgia
#3
of 264 plants
In service since
1971
May 1971
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Georgia Power Co
- County
- Cobb County
- Generating units
- 11
- Share of state capacity
- 6.62%
- Rank among natural gas plants in Georgia
- #1 of 29
- EIA plant code
- 710
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 4 | Natural Gas Fired Combined Cycle | 369 MW | 360 MW | 2011 | Operating |
| 5 | Natural Gas Fired Combined Cycle | 369 MW | 360 MW | 2012 | Operating |
| 6 | Natural Gas Fired Combined Cycle | 369 MW | 345 MW | 2012 | Operating |
| 5ACT | Natural Gas Fired Combined Cycle | 276 MW | 233 MW | 2012 | Operating |
| 5BCT | Natural Gas Fired Combined Cycle | 276 MW | 233 MW | 2012 | Operating |
| 6ACT | Natural Gas Fired Combined Cycle | 276 MW | 233 MW | 2012 | Operating |
| 6BCT | Natural Gas Fired Combined Cycle | 276 MW | 233 MW | 2012 | Operating |
| CT4A | Natural Gas Fired Combined Cycle | 276 MW | 238 MW | 2011 | Operating |
| CT4B | Natural Gas Fired Combined Cycle | 276 MW | 238 MW | 2011 | Operating |
| 3A | Petroleum Liquids | 42 MW | 32 MW | 1971 | Operating |
| 3B | Petroleum Liquids | 42 MW | 32 MW | 1971 | 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
| Vogtle | Nuclear | 4,658 MW |
| Bowen | Coal | 3,499 MW |
| Scherer | Coal | 2,673 MW |
| Edwin I Hatch | Nuclear | 1,848 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 2,848 MW solar plant and a 2,848 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