Wind Turbine Energy
Wind will blow as long as the sun shines; as such it is a reliable, renewable energy resource, capable of providing the world with all of its energy needs. Wind power is the conversion of wind kinetic energy into mechanical energy through the use of wind turbines, a technology that has been in use for centuries. For over a decade, wind has been the world's fastest growing energy source on a percentage basis. The industry has been growing at 28% a year for the past five years, and if growth trends continue at this pace as is expected, wind capacity will double about every three or four years.
Wind power available in the atmosphere is much greater than current world energy consumption. The most comprehensive study to date found the potential of wind power on land and near-shore to be 72 terrawatts (TW), or over five times the world's current energy use in all forms (15 TW from all sources in 2005). At the end of 2007, worldwide maximum output of wind-powered generators was 94.1 gigawatts (GW). Although wind produces only about 1% of worldwide electricity use, it is growing rapidly, increasing more than fivefold globally between 2000 and 2007. By 2010, the World Wind Energy...
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