Hydroelectric Plants
Hydro power produces electricity by harnessing the energy of falling water. The force of the falling water turns a water turbine which turns a generator where electricity is produced.
A dam backs up water thus creating a deeper reservoir and a higher fall of water. The reservoir, then, is a form of stored energy which is released when the water turns the turbine.
Wisconsin Public Service currently owns much of the land near its hydroelectric dams.
| Wisconsin Public Service Corporation Hydroelectric Plants (wholly owned and operated by Wisconsin Public Service Corporation) |
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|---|---|---|---|---|---|---|
| River | Units | Total MW* | Date Built | Operating Mode | License Expiration | |
| Caldron Falls Marinette Cty |
Peshtigo | 2 | 7.0 | 1924 | Limited Peaking | 2037 |
| High Falls Marinette Cty |
Peshtigo | 5 | 7.0 | 1910 | Regulation | 2037 |
| Johnson Falls Marinette Cty |
Peshtigo | 2 | 3.5 | 1923 | Run-of-River | 2037 |
| Sandstone Rapids Marinette Cty |
Peshtigo | 2 | 3.8 | 1925 | Run-of-River | 2037 |
| Potato Rapids Marinette Cty |
Peshtigo | 3 | 1.4 | 1-1926 2-1921 3-1921 |
Run-of-River | 2037 |
| Peshtigo Marinette Cty |
Peshtigo | 2 | 0.6 | 1-1920 2-1924 |
Run-of-River | 2037 |
| Grand Rapids (MI) Menominee Cty |
Menominee | 5 | 6.7 | 1-1910 2-1910 3-1912 4-1918 5-1923 |
Run-of-River | 2037 |
| Wausau Marathon Cty |
Wisconsin | 3 | 5.4 | 1-1921 2-1921 3-1924 |
Run-of-River | 2026 |
| Jersey Lincoln Cty |
Tomahawk | 3 | 0.5 | 1-1923 2-1920 3-1922 |
Run-of-River | 2026 |
| Merrill Lincoln Cty |
Wisconsin | 3 | 2.3 | 1-1917 2-1917 3-1984 |
Run-of-River | N/A |
| Hat Rapids Oneida Cty |
Wisconsin | 3 | 1.7 | 1-1923 2-1905 3-1984 |
Run-of-River | N/A |
| Alexander Lincoln Cty |
Wisconsin | 3 | 4.2 | 1925 | Limited Peaking | 2004 |
| Otter Rapids Vilas Cty |
Wisconsin | 2 | 0.5 | 1-1927 2-1924 |
Run-of-River | 2030 |
| Grandfather Falls Lincoln Cty |
Wisconsin | 2 | 17.2 | 1938 | Limited Peaking | 2018 |
| Tomahawk Lincoln Cty |
Wisconsin | 2 | 2.6 | 1938 | Limited Peaking | 2016 |
| Hydroelectric Plants (50% ownership by Wisconsin Public Service Corporation) |
||
|---|---|---|
| River | Total MW* | |
| Castle Rock | Wisconsin | 15 |
| Petenwell | Wisconsin | 20 |
* Total MW Represented by Nameplate Rating