Wind, on the other hand, is a completely renewable fuel source. As long as the sun shines, the winds will blow. And wind power produces no health risks and no air pollution. Although modern wind turbines regulate power well and level off at their rated capacity, the amount of power they produce varies throughout the day. Hundreds of installations have demonstrated that utility systems are capable of accommodating the changing wind power just as they modify their output to follow changing demand.
Wind energy is also capital intensive.
That's why local, state, and federal governments must support wind energy development through production incentives and public policy to encourage its growth and technological advancement. Such support does make a difference. Wind power now costs as little as 3 per kWh in the U.S., down from 50 per kWh in 1981. In Summary Modern wind turbines safely and efficiently turn wind into useable energy. Hundreds of rural landowners throughout the Midwest have learned how to harvest the wind.