Explore the largest hydro power plants in South Dakota and see all the utility-scale hydro projects in South Dakota on a map.
Last updated: May 2026
On this page, you can explore our real-time database of hydro power plants in South Dakota. Each month, we track hydro projects and update our list of the largest hydro power plants in South Dakota.
As of May 2026, there are 4 utility-scale hydro power plants in South Dakota, according to Cleanview's project tracker. Their total operating capacity is 1,648 MW.
Total Hydro Power Plants
4
Total Capacity
1,648 MW
Built in 2025
0
Map of hydro power plants in South Dakota. Marker size reflects capacity — only facilities with reported capacity data are shown.
786 MW
Year Operational: June 1963
Location: Hughes, South Dakota
538 MW
Year Operational: July 1966
Location: Buffalo, South Dakota
320 MW
Year Operational: January 1956
Location: Charles Mix, South Dakota
4 MW
Year Operational: October 1912
Location: Lawrence, South Dakota
538 MW
Year Operational: July 1966
Location: Buffalo, South Dakota
786 MW
Year Operational: June 1963
Location: Hughes, South Dakota
320 MW
Year Operational: January 1956
Location: Charles Mix, South Dakota
4 MW
Year Operational: October 1912
Location: Lawrence, South Dakota
Cleanview