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Previous upstream dams and reservoirs were part of the 1980s James Bay Project. There are also small and somewhat-mobile forms of a run-of-the-river power plants. One example is the so-called electricity buoy, a small floating hydroelectric power plant. Like most buoys, it is anchored to the ground, in this case in a river.
Fish screens, fish ladder, and related features were also present at the site. [4] The dam produced power at peak times, meaning sometimes it produces electricity and returns water to the river; other times only a small amount of water is returned to the river. This causes a "bathtub" ring effect downstream of the plant's turbines.
Hardy Dam (or Hardy Hydroelectric Plant) is an earth-filled embankment dam and powerplant complex on the Muskegon River in Big Prairie Township, Newaygo County, Michigan. At the time of its completion, it was the largest earthen dam in North America east of the Mississippi.
Hydroelectric power stations continued to become larger throughout the 20th century. Hydropower was referred to as "white coal". [19] Hoover Dam's initial 1,345 MW power station was the world's largest hydroelectric power station in 1936; it was eclipsed by the 6,809 MW Grand Coulee Dam in 1942. [20]
Hydropower technology and attitude began to shift in the second half of the 20th century. While countries had largely abandoned their small hydropower systems by the 1930s, the smaller hydropower plants began to make a comeback in the 1970s, boosted by government subsidies and a push for more independent energy producers. [56]
In 1984, a fish capture feature was added at Conowingo and shad were trucked upstream above all three dams and released. This program ended in 1999. A fish lift was installed in 1991. All three dams completed installation of fish lifts in time for the 2000 season. During the 2000 migration season, 153,000 American shad passed through the ...
Upper Falls Power Plant is a hydroelectric power plant and dam complex on the Spokane River located in Downtown Spokane, Washington.The facility is located on the Upper Spokane Falls in Riverfront Park where the river splits into three branches around snxw meneɂ (formerly known as Canada Island) [3] and Havermale Island.
A photo showing an older flashboard system of the Holyoke Dam and the Canal System's original gatehouse. The river between Holyoke and South Hadley contained what was known as the "Great Falls" a natural 53-foot (16 m) drop in the river approximately 86 miles upstream of the Atlantic Ocean.