According to the American Wind Energy Association: It took 25 years to get to 10 gigawatts (GW) of wind-power capacity—but a mere five months, last year, to jump from 50GW to 60GW. In the U.S., the greatest growth came from the Midwest and the Plains. The states of Iowa and South Dakota each produce more than 20% of their electricity from wind; seven other states produce more than 10%.
Just the month of December last year saw 5.5 GW of new wind power being turned on in the US. And over time, we might be able to get more out of the wind power that we have thanks to better short-time weather prediction.