Marshall Dam
Hydro power plant · Madison County, North Carolina
Details
- Primary fuel
- Hydro
- Technology
- Conventional Hydroelectric
- Operator
- Duke Energy Progress - (NC)
- County
- Madison County
- Generating units
- 2
- Share of state capacity
- 0.01%
- Rank among hydro plants in North Carolina
- #26 of 38
- EIA plant code
- 2710
Generating units
| Unit | Technology | Nameplate | Summer | Online | Status |
|---|---|---|---|---|---|
| HC1 | Conventional Hydroelectric | 2.5 MW | 2.0 MW | 1985 | Operating |
| HC2 | Conventional Hydroelectric | 2.5 MW | 2.0 MW | 1985 | 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 North Carolina
| Manway Solar Farm | Solar | 5.0 MW |
| Mariposa Solar Center LLC | Solar | 5.0 MW |
| Marshville Farm | Solar | 5.0 MW |
| Maysville BESS | Battery storage | 5.0 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 5.0 MW solar plant and a 5.0 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 North Carolina power plants · What North Carolina actually generates