Explore the largest hydro power plants in Pennsylvania and see all the utility-scale hydro projects in Pennsylvania on a map.
Last updated: May 2026
On this page, you can explore our real-time database of hydro power plants in Pennsylvania. Each month, we track hydro projects and update our list of the largest hydro power plants in Pennsylvania.
As of May 2026, there are 19 utility-scale hydro power plants in Pennsylvania, according to Cleanview's project tracker. Their total operating capacity is 2,429 MW.
Total Hydro Power Plants
19
Total Capacity
2,429 MW
Built in 2025
0
Map of hydro power plants in Pennsylvania. Marker size reflects capacity — only facilities with reported capacity data are shown.
1,072 MW
Year Operational: February 1968
Location: Lancaster, Pennsylvania
438 MW
Year Operational: June 1970
Location: Warren, Pennsylvania
418 MW
Year Operational: April 1986
Location: Lancaster, Pennsylvania
247 MW
Year Operational: November 2013
Location: Lancaster, Pennsylvania
51 MW
Year Operational: July 1929
Location: Fayette, Pennsylvania
40 MW
Year Operational: June 1926
Location: Wayne, Pennsylvania
30 MW
Year Operational: February 1928
Location: Clarion, Pennsylvania
22 MW
Year Operational: June 1988
Location: Huntingdon, Pennsylvania
20 MW
Year Operational: December 1905
Location: York, Pennsylvania
6 MW
Year Operational: December 2013
Location: Armstrong, Pennsylvania
247 MW
Year Operational: November 2013
Location: Lancaster, Pennsylvania
18 MW
Year Operational: December 1990
Location: Armstrong, Pennsylvania
14 MW
Year Operational: December 1990
Location: Armstrong, Pennsylvania
12 MW
Year Operational: December 1989
Location: Somerset, Pennsylvania
15 MW
Year Operational: February 1989
Location: Westmoreland, Pennsylvania
9 MW
Year Operational: November 1988
Location: Armstrong, Pennsylvania
9 MW
Year Operational: October 1988
Location: Armstrong, Pennsylvania
22 MW
Year Operational: June 1988
Location: Huntingdon, Pennsylvania
Cleanview