AWEA attributed the 92% year-on-year decline in installations on the late extensions early last year by Congress of the renewable electricity production tax credit (PTC) and investment tax credit for wind.

Fourth quarter 2013 installations totaled 1.01GW, roughly one-eighth the record 8.38GW in the same period a year earlier. New capacity came into service in California, Colorado, Indiana, Iowa, Kansas, Massachusetts, Michigan, New York and Texas.

General