Energy policy of the United States
U.S. wind power installed capacity now exceeds 65,000MW. For calendar year 2014, the electricity produced from wind power in the United States amounted to 181.79 terawatt-hours, or 4.44% of all generated electrical energy. Texas is firmly established as the leader in wind power development, followed by Iowa and California.
United States wind energy policy
At the end of 2010, the installed capacity of wind power in the United States was just over 40,000 megawatts (MW), making it second in the world behind China. In 2010 Wind power accounted for 2.3% of the electricity generated in the United States. This amounted to 94,650 thousand megawatt-hours of electricity.
Driven by state renewable energy targets, fourteen states have installed over 1,000 MW of wind capacity, and a total of 37 states now have installed at least some utility-scale wind power. Texas, with 9,728 MW of capacity, has the most installed wind power capacity of any U.S. state, followed by Iowa with 3,670 MW. The Roscoe Wind Farm (780 MW) in Texas is the world's largest wind farm.