🔌 EV Partnership Switch to Octopus Energy & unlock exclusive smart EV charging rates Find out more → Skip to main content

United States › Power plants › Hydroelectric plants › Pennsylvania

HYDROELECTRIC PLANTS

Muddy Run

Muddy Run is a 1,072 MW operating hydroelectric plant in Lancaster County, Pennsylvania, operated by Constellation Power, Inc.

Plant statusOperating
  1. Planning (completed)
  2. Consented (completed)
  3. Construction (completed)
  4. OperatingApr 1967 (current stage)
  5. Closed (not yet reached)

Open in Google MapsMore hydroelectric plants in Pennsylvania

Generators

Each generating unit EIA lists at this plant.

UnitTechnologyCapacityStatusOnlineRetired / planned retirement
1Hydroelectric Pumped Storage134 MW OperatingApr 1967
2Hydroelectric Pumped Storage134 MW OperatingApr 1967
3Hydroelectric Pumped Storage134 MW OperatingApr 1967
4Hydroelectric Pumped Storage134 MW OperatingJun 1967
5Hydroelectric Pumped Storage134 MW OperatingOct 1967
6Hydroelectric Pumped Storage134 MW OperatingOct 1967
7Hydroelectric Pumped Storage134 MW OperatingFeb 1968
8Hydroelectric Pumped Storage134 MW OperatingFeb 1968

Plant details

Operator
Constellation Power, Inc
Location
Lancaster County, Pennsylvania
Balancing authority
PJM
Sector
IPP Non-CHP
Capacity
Operating: 1,072 MW
First unit online
Apr 1967
EIA plant ID
3164

Location

39.8076, -76.2993

Nearby power plants

Source: U.S. Energy Information Administration, Form EIA-860M, September 2026. Planned dates are targets reported by the developer and often change. Report a problem