![]() | This section needs expansion. You can help by adding to it. (February 2020) |
This is a list of hydroelectric power stations under construction with an expected nameplate capacity of at least 100 MW.
Name | State | Coordinates | Capacity (MW) | Annual generation (GWh) | Owner | Type | Year | Ref |
---|---|---|---|---|---|---|---|---|
Gordon Butte | ![]() | 46°25′07″N110°22′20″W / 46.41861°N 110.37222°W | 400 | 1,300 | Absaroka Energy | Pumped-storage | [109] [110] |
![]() | This section needs expansion. You can help by adding to it. (February 2020) |
When this facility was built, it was actually the largest pumped storage facility in the world. Vermont Yankee being a nuclear power plant generates power 24/7, or what they call base load," Bakas says. "So as a result of that at night they had all this excess power on the grid. So somebody needed to take it. So this plant was conceived and built to take that off-peak power and utilize it through pumping water during off-peak periods.