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An example of a wind turbine, this 3 bladed turbine is the classic design of modern wind turbines Wind turbine components : 1-Foundation, 2-Connection to the electric grid, 3-Tower, 4-Access ladder, 5-Wind orientation control (Yaw control), 6-Nacelle, 7-Generator, 8-Anemometer, 9-Electric or Mechanical Brake, 10-Gearbox, 11-Rotor blade, 12-Blade pitch control, 13-Rotor hub
Plan of the wind turbine for power generation by Josef Friedlaender before the electrical exhibition in the Vienna Prater (Rotunde) in 1883. Charles Brush's windmill of 1888, used for generating electricity. Wind power has been used as long as humans have put sails into the wind.
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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.
In the end of 2011 49.6 MW was expected to be completed. The Pakistani government also issued a Letter Of Interest in a 100 MW Wind power plant to FFCEL. The Pakistani government had plans to achieve electric power generation of up to 2500 MW by the end of 2015 from wind energy to bring down an energy shortage.
The scope area of the wind farm was 129 km 2 (50 sq mi), of which only 104 ha (1.04 km 2) would be permanently built upon, additionally the plan required construction of approximately 104 km (65 mi) of access roads, and the quarrying of 1,470,000 m 3 (0.00147 km 3) of rock, and the disturbance of between 650 and 900,000 cubic metres of peat. [7]
It was a Halladay windmill for driving a dynamo. Friedländer's 6.6 m (22 ft) diameter Halladay "wind motor" was supplied by U.S. Wind Engine & Pump Co. of Batavia, Illinois. The 3.7 kW (5 hp) windmill drove a dynamo at ground level that fed electricity into a series of batteries. The batteries powered various electrical tools and lamps, as ...
Their rotatable nacelles were mounted on the main structure of the windmill using primitive wooden gliding bearings lubricated with animal fat. The necessary yawing torque was created by means of animal power , human power or even wind power (implementation of an auxiliary rotor known as fantail).