A total of 13.2 gigawatts of wind energy were installed in the United States throughout 2012, accounting for 6 percent of the nation's electricity generation, Bloomberg New Energy Finance reported.
The Production Tax Credit helped drive wind energy growth throughout the year, said Amy Grace, lead analyst on wind in North America for New Energy Finance.
“Capacity was built without any near-term state mandated demand," she said, according to the article. "This means that in most areas, utilities are buying wind power because they want to, not because they have to.”
Some developers feared the tax credit would not be extended in 2013, and many completed wind turbine projects by the end of 2012, Bloomberg reported.
According to AltEnergyMag, 5.5 GW of wind energy were installed just in December 2012 - the most ever installed in the United States in a single month. The growth in wind energy in 2012 compared to 2011 represents a 102 percent increase, the article stated.