By Ritesh Gupta

Twelve states accounted for 80% of U.S. wind-generated electricity last year, according to preliminary generation data released in The U.S. Energy Information Administration’s (EIA) March Electric Power Monthly report. California's wind generation exceeded geothermal generation for the first time in 2013.

Texas was again the top wind power state with nearly 36 million MWh of electricity.

Iowa was second, with more than 15 million MWh, followed by California, Oklahoma, Illinois, Kansas, Minnesota, Oregon, Colorado, Washington, North Dakota, and Wyoming.These 12 states produced a combined 134 million MWh of electricity from wind.

Nationwide, 167 million MWh of power came from wind in 2013, a 19% increase from 2012. Wind power increased its share of U.S. total electricity generation in 2013 from 3.5% to 4.1%.

All but 13 states reported to EIA some generation from wind, and 23 states increased their wind generation more than 10% above 2012 production levels.