The U.S. added a record 13.2 gigawatts of wind generation capacity in 2012, including a single-month record of 5.5 GW in December, as developers scrambled to complete projects ahead of the possible Dec. 31 expiration of the wind-energy Production Tax Credit, according to a report by Bloomberg New Energy Finance. "Capacity was built without any near-term state mandated demand. This means that in most areas, utilities are buying wind power because they want to, not because they have to," said Amy Grace of BNEF.

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