Electricity Markets

Wind power exceeds 10 percent of generation in 11 states

Eleven states generated at least 10 percent of their total electricity from wind in 2015, up from only three in 2010, according to the Energy Information Administration, a division of the Department of Energy.

Few other renewable fuels make up 10 percent or more of states' electricity generation, the EIA said. Hydropower was the most common form of renewable power in 2015 and made up at least 10 percent of electricity generation in only 10 states. In California, solar power from utility-scale and rooftop residential installations made up 10 percent of the state's generation in 2015. In the District of Columbia, rooftop solar made up 38 percent of its electricity generation in 2015.

The top three wind generating states in 2015 were Iowa with 31.3 percent, South Dakota with 25.5 percent, and Kansas with 23.9 percent. Texas and New Mexico are on track to surpass 10 percent in 2016 based on data the EIA collected through July. Texas generated 9.9 percent of its total electricity from wind in 2015 and generates the most wind power in the country.

Wind's share of the total U.S. electricity generation has risen annually since 2001, the EIA said. Wind generated 190,927 gigawatt-hours of electricity in 2015 — nearly 5 percent of net electric power generation in the country. This is double the generation share in 2010, the EIA said. Based on the monthly data EIA collected through July, wind has provided 5.6 percent of U.S. generation in 2016.

Technology and policy changes are driving the rise in wind power in the United States, the EIA said. Wind technology is improving and access to transmission capacity is increasing. On the policy side, the federal Production Tax Credit and Investment Tax Credit, as well as state-level renewable portfolio standards, have led to more wind development. States also provide incentives to encourage wind power development.