Iowa is a leading U.S. state in wind power generation and electricity, with 5,177 MW of capacity (ahead of all states except Texas and California). Iowa produces 27.4% of all the electricity generated in the state from wind turbines.
Spain has a robust and diverse renewable energy portfolio that has drastically reduced its reliance on fossil fuels. At the end of 2013, Spain had 22,959 MW of installed wind capacity.
Wind power has a long history in Texas. In 1970, West Texas State University began wind energy research which led to the formation of the Alternative Energy Institute (AEI) in 1977. AEI has been a major information resource about wind energy for Texas.
According to the American Wind Energy Association, as of September 2014, Colorado ranked tenth for wind power capacity with 2,332 megawatts (MW) installed. In 2006, Colorado only had 291 MW of capacity, despite a strong wind resource.