wind power : Shcri.com: Research Report of Chinese Wind Power Industry, 2009

The wind energy is the kinetic energy producing by the flows of mass air in the surface of the earth. Due to the different temperature changes of the earth after the solar irradiation and the different steam contents in the air, the air pressure is different in various regions. In the horizontal direction, the high pressure air flows to the low air pressure areas and then forms the wind. The wind energy resources are determined by the wind energy density and the available annual

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