Power plants operated by Oglethorpe Power Corporation
Oglethorpe Power Corporation operates 11 power plants in the 2025 EIA-860 data, with 6,472 MW of nameplate capacity, the 39th-largest fleet among the 5,826 operators on file. All of them are in Georgia. Natural gas is 87% of the capacity; the largest site is Thomas A Smith Energy Facility. Its oldest working unit dates from 1994, at Hartwell Energy Facility.
- Natural gas5,624 MW87%
- Pumped-storage hydro848 MW13%
Capacity by decade it came online
Natural gasPumped-storage hydro
Above the line: capacity operating in 2025. Below: capacity retired at these plants.
Plants
| Plant | State | Runs on | Capacity | First unit |
|---|---|---|---|---|
| Thomas A Smith Energy Facility | Georgia | Natural gas | 1,192 MW | 2002 |
| Rocky Mountain Hydroelectric Plant | Georgia | Pumped-storage hydro | 848 MW | 1995 |
| Talbot County Energy | Georgia | Natural gas | 726 MW | 2002 |
| Bobby C Smith Jr Energy Facility | Georgia | Natural gas | 597 MW | 2003 |
| Sewell Creek Energy | Georgia | Natural gas | 570 MW | 2000 |
| Chattahoochee Energy Facility | Georgia | Natural gas | 540 MW | 2003 |
| Hawk Road Facility | Georgia | Natural gas | 495 MW | 2001 |
| Walton County Energy Facility | Georgia | Natural gas | 494 MW | 2001 |
| Doyle Energy Facility | Georgia | Natural gas | 409 MW | 2000 |
| Hartwell Energy Facility | Georgia | Natural gas | 360 MW | 1994 |
| Smarr Energy Center | Georgia | Natural gas | 242 MW | 1999 |