7th largest plant in Georgia · 224th nationally
Wansley Combined Cycle is a natural gas power plant in Georgia with a nameplate capacity of 1,239 MW. It generates roughly 9.1M MWh per year — enough to power about 862,390 average U.S. homes.
Its capacity factor of 83% means it runs nearly around-the-clock as baseload generation. At 824 lb CO₂/MWh, its emission rate sits above the national grid average of roughly 800 lb/MWh.
Ghost bars are each month's theoretical maximum (1,239 MW nameplate × hours in the month). Filled bars are actual net generation reported to EIA Form 923. The gap between them is capacity factor made visible.
| Plant Name | Wansley Combined Cycle |
|---|---|
| Operator | Southern Power Co |
| City | Franklin |
| County | Heard County |
| State | Georgia |
| ZIP | 30217 |
| Coordinates | 33.40639, -85.03699 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| ST6 | Natural Gas Fired Combined Cycle | Natural Gas | 213 MW | Operating | 2002 |
| ST7 | Natural Gas Fired Combined Cycle | Natural Gas | 213 MW | Operating | 2002 |
| CT6A | Natural Gas Fired Combined Cycle | Natural Gas | 203 MW | Operating | 2002 |
| CT6B | Natural Gas Fired Combined Cycle | Natural Gas | 203 MW | Operating | 2002 |
| CT7A | Natural Gas Fired Combined Cycle | Natural Gas | 203 MW | Operating | 2002 |
| CT7B | Natural Gas Fired Combined Cycle | Natural Gas | 203 MW | Operating | 2002 |
| CO₂ | 3.7M metric tons |
|---|---|
| SO₂ | 19 metric tons |
| NOₓ | 269 metric tons |
| CO₂ Rate | 824 lb/MWh |
Annual totals and CO₂ rate reported by EPA eGRID for 2023. Reference averages are approximate U.S.-wide figures from the same dataset.
| NERC Region | SERC |
|---|---|
| Balancing Authority | Southern Company Services, Inc. - Trans |
Natural gas plants are the workhorse of the modern grid. Combined-cycle units achieve very high efficiency and can ramp up and down quickly to balance variable renewables. They emit roughly half the CO₂ per MWh of coal and far less of other pollutants, but they still release upstream methane during fuel extraction.