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Most wind turbines use fan-like blades to spin a turbine. This one uses four wings that "flap" in the wind, and generate electricity. This provides a method of wind power generation that could be used in different situations from conventional turbines, and that might avoid some of the dangers to wildlife presented by large, spinning blades. 

Inflatable wind turbine that generates power 1,000 feet in the air

This turbine uses a helium shell to get up into the atmosphere, held in check by a long tether, and generate power from the constant winds at altitude.