There are 25 operating Hydroelectric Power Plants on the Wisconsin River. The hydroplants are owned and operated by paper companies and public utilities. The generating capacity ranges from 700 kilowatts at the Otter Rapids Station to 29.5 megawatts at the Prairie du Sac Station. The Grandfather Station, owned by Wisconsin Public Service Corporation and located between Merrill and Tomahawk along Highway 107, is shown on the right.
Hydroelectric power is the worlds leading source of renewable energy.
More information About Hydropower. Based on average annual residential electrical use of 3 mwh per person.