Chattahoochee Energy Facility
Natural gas power plant · Heard County, Georgia
Nameplate capacity
540 MW
Rank in Georgia
#23
of 264 plants
In service since
2003
February 2003
Details
- Primary fuel
- Natural gas
- Technology
- Natural Gas Fired Combined Cycle
- Operator
- Oglethorpe Power Corporation
- County
- Heard County
- Generating units
- 3
- Share of state capacity
- 1.25%
- Rank among natural gas plants in Georgia
- #16 of 29
- EIA plant code
- 7917
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 3 | Natural Gas Fired Combined Cycle | 188 MW | 179 MW | 2003 | Operating |
| 1 | Natural Gas Fired Combined Cycle | 176 MW | 146 MW | 2003 | Operating |
| 2 | Natural Gas Fired Combined Cycle | 176 MW | 142 MW | 2003 | 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
| Sewell Creek Energy | Natural gas | 570 MW |
| McManus | Other | 560 MW |
| Carters | Hydro | 500 MW |
| Hawk Road Facility | Natural gas | 495 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 540 MW solar plant and a 540 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