DOE Global Energy Storage Database
Office of Electricity Delivery & Energy Reliability
Muddy Run Pumped Hydro Storage
The 8-unit power station provides 1,070 megawatts (MW) of electricity by damming the Muddy Run ravine from its mouth. The station’s output is critical to meeting the dynamic peak electricity demands on the area’s regional power grid on hot summer afternoons. To generate electricity, the water in the upper reservoir at Muddy Run is used to fuel the turbines, flowing into the Conowingo Pond, a 14-mile stretch of the Susquehanna River in Maryland. As electricity demand decreases, at night, the units are reversed and used as pumps to fill the upper reservoir for subsequent peak-demand periods.
Muddy Run has provided electric power to the regional transmission system since commercial operation began in 1966. At the time, it was the largest pumped-storage hydroelectric power plant in the world. The general plant configuration remains the same as the original construction, however, the turbines and generators have been recently refurbished.
Open-loop Pumped Hydro Storage
Jan 01, 1966
172 Bethesda Church Rd.,
West Holtwood , Pennsylvania 17532
OWNERSHIP & VALUE CHAIN PARTNERS
Susquehanna Electric Company
Westinghouse Electric Company
COST & PERFORMANCE
The electrical generating equipment consists of eight motor-generator units, each rated at 13.8 kilovolts (kV), 3 phase, 60 cycle, 100 MW at 0.9 power factor at a temperature rise of 140°F (60°C) as a generator. Switching and control equipment are connected to the eight motor-generators in pairs to the four 13.8-220 kV transformers. A 13.8 kV circuit breaker is provided on each motor-generator.
2013-04-19 09:09 PM UTC
2016-06-14 10:03 PM UTC