A new U.S. Energy Department report ranks Iowa first in the nation for percentage of in-state electricity generation from wind power. After installing more than 800 megawatts of new wind power capacity last year, Iowa can now generate about 25 percent of its electricity from wind energy, according to the 2012 Wind Technologies Market Report. Nationally, more than 13 gigawatts (GW) of new wind power capacity were added last year to the grid, nearly double the wind capacity deployed in 2011. The nation's wind power capacity now surpasses 60 GW, enough capacity to power more than 15 million homes each year. The report estimates that 72 percent of the wind turbine equipment installed in the United States last year was manufactured domestically, nearly triple the 25 percent in 2006-2007.