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A wind turbine is a device that converts the kinetic energy of wind into electrical energy. As of 2020 [update] , hundreds of thousands of large turbines , in installations known as wind farms , were generating over 650 gigawatts of power, with 60 GW added each year. [ 1 ]
Wind turbine – a turbine that converts wind energy into mechanical energy. Windmill – a machine which converts the energy of wind into rotational energy by means of vanes called sails or blades. Windpump – a windmill used for pumping water, either as a source of fresh water from wells, or for draining low-lying areas of land.
Wind-turbine blades in laydown yard awaiting installation. The primary application of wind turbines is to generate energy using the wind. Hence, the aerodynamics is a very important aspect of wind turbines. Like most machines, wind turbines come in many different types, all of them based on different energy extraction concepts.
Wind power is the use of wind energy to generate useful work. Historically, wind power was used by sails , windmills and windpumps , but today it is mostly used to generate electricity. This article deals only with wind power for electricity generation.
Wind turbine design is the process of defining the form and configuration of a wind turbine to extract energy from the wind. [1] An installation consists of the systems needed to capture the wind's energy, point the turbine into the wind, convert mechanical rotation into electrical power , and other systems to start, stop, and control the turbine.
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The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site. A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, by tradition specifically to mill grain (), but in some parts of the English-speaking world, the term has also been extended to encompass windpumps, wind turbines, and other applications.
They usually produce between 500 W and 10 kW, with some as small as 50 W. The Canadian Wind Energy Association considers small wind turbines to be up to 300 kW, [1] while the IEC 61400 standard defines them as having a rotor area smaller than 200 m 2 and generating voltage below 1000 Va.c. or 1500 Vd.c.