Data from the U.S. Department of Energy indicates by the end of December 2016, U.S. wind electricity capacity was equal to 82.17 gigawatts (GW), compared with 74.47 GW during the same period a year earlier. By June 30, 2017, wind capacity was equal to 84.95 GW. Cumulative wind power grew 10.3 percent between 2015 and 2016. Overall, from 2007 to 2016 wind power capacity increased 386 percent.
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