Wind turbines use blades to collect the wind's kinetic energy. The blades are connected to a drive shaft that turns an electric generator, which produces. . Wind turbines work on a simple principle: instead of using electricity to make wind—like a fan—wind turbines use wind to make electricity. Wind flows over the blades creating lift (similar to the effect on airplane wings), which causes the blades to turn. . Electric motors are at the heart of various renewable energy technologies, including wind turbines, solar power systems, and hydroelectric generators. They can be stand-alone, supplying just one or a very small number of homes or businesses, or they can be clustered to form part of a wind farm.
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