💧 Hydroelectric Power Plants in Maryland
Maryland operates 2 hydroelectric power plants totaling 551 MW of nameplate capacity. Annual generation: 1.8M MWh.
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.
Plants2operating
Capacity550 MWnameplate
Generation1.8M MWhannual
All Maryland hydroelectric plants
| Plant | City | County | Capacity | Operator |
|---|---|---|---|---|
| Conowingo | Darlington | Harford County | 531 MW | Constellation Power, Inc |
| Deep Creek | Oakland | Garrett County | 20 MW | Bp Piney & Deep Creek Llc |