More than 8,500 megawatts of wind power capacity was built last year, almost double the 2014 tally. More than 3,600 megawatts of that construction - enough to power about 100,000 homes - was built in Texas, which now counts almost a quarter of the country's wind energy. The surge followed a rush by wind developers to get projects under construction before the end of 2014 out of fear Congress would not renew the tax credit, an uncertainty that has hung over the industry for nearly 20 years.
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