Explore the largest hydro power plants in Alaska and see all the utility-scale hydro projects in Alaska on a map.
Last updated: May 2026
On this page, you can explore our real-time database of hydro power plants in Alaska. Each month, we track hydro projects and update our list of the largest hydro power plants in Alaska.
As of May 2026, there are 34 utility-scale hydro power plants in Alaska, according to Cleanview's project tracker. Their total operating capacity is 482 MW.
Total Hydro Power Plants
34
Total Capacity
482 MW
Built in 2025
0
Map of hydro power plants in Alaska. Marker size reflects capacity — only facilities with reported capacity data are shown.
126 MW
Year Operational: June 1991
Location: Kenai Peninsula, Alaska
78 MW
Year Operational: December 1990
Location: Juneau, Alaska
44 MW
Year Operational: April 1955
Location: Matanuska Susitna, Alaska
34 MW
Year Operational: February 2014
Location: Kodiak Island, Alaska
23 MW
Year Operational: July 1983
Location: Wrangell Petersburg, Alaska
23 MW
Year Operational: June 1984
Location: Ketchikan Gateway, Alaska
19 MW
Year Operational: May 1961
Location: Kenai Peninsula, Alaska
19 MW
Year Operational: October 1982
Location: Sitka, Alaska
16 MW
Year Operational: October 2014
Location: Sitka, Alaska
2 MW
Year Operational: December 2023
Location: Wrangell Petersburg, Alaska
5 MW
Year Operational: January 2021
Location: Prince of Wales Ketchikan, Alaska
1 MW
Year Operational: August 2017
Location: Aleutians East, Alaska
7 MW
Year Operational: October 2016
Location: Valdez Cordova, Alaska
5 MW
Year Operational: January 2015
Location: Ketchikan Gateway, Alaska
16 MW
Year Operational: October 2014
Location: Sitka, Alaska
34 MW
Year Operational: February 2014
Location: Kodiak Island, Alaska
14 MW
Year Operational: September 2009
Location: Juneau, Alaska
0 MW
Year Operational: July 2009
Location: Skagway Hoonah Angoon, Alaska
Cleanview