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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] Hydropower is a method of sustainable energy ...
A dam may create a reservoir hundreds of kilometres long, but in run-of-the-river the head is usually delivered by a canal, pipe or tunnel constructed upstream of the power house. The cost of upstream construction makes a steep drop desirable, such as falls or rapids.
Hydropower is a flexible source of electricity since stations can be ramped up and down very quickly to adapt to changing energy demands. [31] Hydro turbines have a start-up time of the order of a few minutes. [37] Although battery power is quicker its capacity is tiny compared to hydro. [2]
The Hoover Dam, when completed in 1936, was both the world's largest electric-power generating station and the world's largest concrete structure. Hoover Dam power station Hydroelectricity is, as of 2019, the second-largest renewable source of energy in both generation and nominal capacity (behind wind power ) in the United States. [ 1 ]
The Three Gorges Dam in Hubei, China, has the world's largest instantaneous generating capacity at 22,500 MW of power. In second place is the Baihetan Dam, also in China, with a capacity of 16,000 MW. The Itaipu Dam in Paraguay and Brazil is the third largest with 14,000 MW of power.
A pico hydro system made by the Sustainable Vision project from Baylor University [1]. Pico hydro is a term used for hydroelectric power generation of under 5 kW. These generators have proven to be useful in small, remote communities that require only a small amount of electricity – for example, to power one or two fluorescent light bulbs and a TV or radio in 50 or so homes. [2]
Snoqualmie Falls. The power plant was envisioned by Charles H. Baker in the 1890s. Baker was an engineer for the Seattle, Lake Shore and Eastern Railway and would pass the Snoqualmie Falls routinely during his work.
The Henry M. Jackson Hydroelectric Project, or Jackson Hydro Project, is an electric power generating project on the Sultan River operated and maintained by the Snohomish County Public Utility District in Washington, co-licensed by the city of Everett, Washington. [1]