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Hydropower (from Ancient Greek ὑδρο-, "water"), also known as water power or water energy, is the use of falling or fast-running water to produce electricity or to power machines. This is achieved by converting the gravitational potential or kinetic energy of a water source to produce power. [ 1 ]
During periods of peak demand water is released to generate power. Electrical generation can begin within two minutes with peak electric output of 1872 MW achieved in under 30 minutes. Maximum water flow is over 33 million US gallons (120,000 m 3) per minute. This process was designed to level the load of nearby nuclear power plants on the grid.
Hydroelectricity, or hydroelectric power, is electricity generated from hydropower (water power). Hydropower supplies 15% of the world's electricity , almost 4,210 TWh in 2023, [ 1 ] which is more than all other renewable sources combined and also more than nuclear power . [ 2 ]
There are 9 power stations capable of pumping with a total installed capacity of 1344 MW and an average annual production of 2247 GWh. The pumped storage hydropower in Norway is built a bit differently from the rest of the world. They are designed for seasonal pumping. Most of them can also not cycle the water endlessly, but only pump and reuse ...
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.
Seneca was among 11 hydroelectric power stations that FirstEnergy agreed in 2013 to sell to LS Power of New York City. [ 3 ] Pumped storage plants function similarly to a storage battery ; they absorb excess power generated by such plants in off-peak hours, such as nighttime, using it to pump water into a reservoir .
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.
To supply water to Plant 1 and 2, a weir with a height ranging 4–16 ft (1.2–4.9 m) creates a small reservoir. The intake for Plant 1 is located just above the left abutment of the weir. Water from the intake enters a 280 ft (85 m) long and 7 ft (2.1 m) diameter vertical penstock which supplies water to the plant. Plant 1 is located in a ...