27th largest plant in Tennessee · 2392nd nationally
Old Hickory is a hydroelectric power plant in Tennessee with a nameplate capacity of 104 MW. It generates roughly 368.7k MWh per year — enough to power about 35,112 average U.S. homes.
Its capacity factor of 41% puts it in the middle range — running steadily but not full-time.
| Plant Name | Old Hickory |
|---|---|
| Operator | Usce-Nashville District |
| City | Hendersonville |
| County | Sumner County |
| State | Tennessee |
| ZIP | 37075 |
| Coordinates | 36.29720, -86.65560 |
This plant highlighted in navy-ringed pin; other generators within 25 miles shown as fuel-colored dots.
| ID | Technology | Fuel | Capacity | Status | Online |
|---|---|---|---|---|---|
| 1 | Conventional Hydroelectric | Water | 28.7 MW | Operating | 1957 |
| 2 | Conventional Hydroelectric | Water | 25.0 MW | Operating | 1957 |
| 3 | Conventional Hydroelectric | Water | 25.0 MW | Operating | 1957 |
| 4 | Conventional Hydroelectric | Water | 25.0 MW | Operating | 1957 |
| NERC Region | SERC |
|---|---|
| Balancing Authority | Tennessee Valley Authority |
Hydroelectric plants spin turbines using falling or flowing water — typically from a dam-impounded reservoir. They are dispatchable, long-lived, and emission-free at the point of generation, though large reservoirs can disrupt rivers and ecosystems and methane can be released from flooded vegetation.