Explore the largest hydro power plants in PJM and see all the utility-scale hydro projects in PJM on a map.
Last updated: May 2026
On this page, you can explore our real-time database of hydro power plants in PJM. Each month, we track hydro projects and update our list of the largest hydro power plants in PJM.
As of May 2026, there are 84 utility-scale hydro power plants in PJM, according to Cleanview's project tracker. Their total operating capacity is 8,380 MW.
Total Hydro Power Plants
84
Total Capacity
8,380 MW
Built in 2025
0
Map of hydro power plants in PJM. Marker size reflects capacity — only facilities with reported capacity data are shown.
2,862 MW
Year Operational: December 1985
Location: Bath, Virginia
1,072 MW
Year Operational: February 1968
Location: Lancaster, Pennsylvania
548 MW
Year Operational: June 1980
Location: Pittsylvania, Virginia
531 MW
Year Operational: May 1964
Location: Harford, Maryland
453 MW
Year Operational: December 1965
Location: Warren, New Jersey
438 MW
Year Operational: June 1970
Location: Warren, Pennsylvania
418 MW
Year Operational: April 1986
Location: Lancaster, Pennsylvania
297 MW
Year Operational: December 2008
Location: Mecklenburg, Virginia
247 MW
Year Operational: November 2013
Location: Lancaster, Pennsylvania
3 MW
Year Operational: May 2022
Location: St Joseph, Indiana
3 MW
Year Operational: September 2021
Location: Estill, Kentucky
12 MW
Year Operational: February 2021
Location: Patrick, Virginia
105 MW
Year Operational: April 2016
Location: Bracken, Kentucky
44 MW
Year Operational: February 2016
Location: Pleasants, West Virginia
6 MW
Year Operational: December 2013
Location: Armstrong, Pennsylvania
247 MW
Year Operational: November 2013
Location: Lancaster, Pennsylvania
297 MW
Year Operational: December 2008
Location: Mecklenburg, Virginia
2 MW
Year Operational: December 2008
Location: Mercer, Kentucky
Cleanview