Wind Power Primer
According to the International Energy Agency, as of the year 2001, renewable energy sources (water, solar, geothermal, combustible and waste renewables, and wind) comprised 13.8 percent of the world's primary energy supply and 19 percent of all electricity production. Of that 13.8 percent, wind power accounted for only .0026 percent.
That doesn't seem like much, but wind power is one of the fastest-growing sources of energy in both the United States and abroad. While the use of renewable energy sources as a whole has annually by 2 percent since 1971, wind-power generation has increased at an average of 52.1 percent every year between 1971 and 2000.
The American Wind Energy Association estimates that an additional 6,500 megawatts of wind-energy generating capacity were added worldwide in 2001, accounting for about $7 billion in electricity sales. The U.S. alone added 1,700 megawatts worth of generating equipment.
Sources: National Wind Technology Center; International Energy Agency, "Renewables in Global Energy Supply;" American Wind Energy Association "Fact Sheet," Global Wind Energy Market Report; United States Energy Information Administration; U.S. Department of Energy, Wind Energy Program; The World Energy Council, Survey of Energy Resources 2001; Sustainable Minnesota
More on estimated future world energy needs.