Approximately 40% of the total 2012 wind capacity additions (12,620 MW) came online in December, just before the scheduled expiration of the wind production tax credit (PTC). During December 2012, 59 new wind projects totaling 5,253 MW began commercial operation, the largest-ever single-month capacity increase for U.S. wind energy. About 50% of the total December wind capacity additions were installed in three states: Texas (1,120MW), Oklahoma (794 MW), and California (730 MW).
Wind plant developers reported throughout 2012 increasing amounts of new capacity scheduled to enter commercial operation before the end of the year. To qualify for the PTC last year, wind projects had to begin commercial operation by December 31.
On New Year’s Day, Congress enacted a one-year extension of the PTC and also relaxed the rules. Under this extension, projects that begin construction before the end of 2013 are eligible to receive a 2.2 ¢/kWh PTC for generation…
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