Rocky Mountain Hydroelectric Plant
Hydro power plant · Floyd County, Georgia
Nameplate capacity
848 MW
Rank in Georgia
#11
of 264 plants
In service since
1995
June 1995
Details
- Primary fuel
- Hydro
- Technology
- Hydroelectric Pumped Storage
- Operator
- Oglethorpe Power Corporation
- County
- Floyd County
- Generating units
- 3
- Share of state capacity
- 1.97%
- Rank among hydro plants in Georgia
- #1 of 30
- EIA plant code
- 6189
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| 1 | Hydroelectric Pumped Storage | 283 MW | 345 MW | 1995 | Operating |
| 2 | Hydroelectric Pumped Storage | 283 MW | 345 MW | 1995 | Operating |
| 3 | Hydroelectric Pumped Storage | 283 MW | 345 MW | 1995 | 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
| Tenaska Georgia Generation Facility | Natural gas | 1,099 MW |
| Dahlberg | Natural gas | 919 MW |
| McIntosh | Natural gas | 810 MW |
| Yates | Natural gas | 807 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 848 MW solar plant and a 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