Since 2008, wind power in the U.S. has grown from 16.7 gigawatts to about 70 gigawatts today. Now about 4.5 percent of U.S. electricity comes from wind turbines - enough renewable energy to power 19 million homes.
Recently Congress extended the wind production tax credit through 2019. The American Wind Energy Association expects the extension, along with a 66 percent drop in the cost of producing wind power since 2009, to spark another boom. Read more http://www.climatecentral.org/
