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A wind turbine is a device that converts kinetic energy from the wind into electrical power. The term appears to have migrated from parallel hydroelectric technology (rotary propeller). The technical description for this type of machine is an aerofoil-powered generator.nshore wind turbines are installed in low wind speed areas and getting higher and higher towers. Usual towers of multi megawatt turbines have a height of 70m to 120m and in extremes up to 160m. All turbines are rotating with a speed, that the blade tip speed reach 80 m/s to 90 m/s.
Wind turbines cannot work if there is no wind, or if the wind speed is so high it would damage them. Wind turbines are usually sited on high hills and mountain ridges to take advantage of the prevailing winds. Just like a windmill, wind energy turbines have been around for over 1000 years.