Washington outpaced California and Texas in the use of renewable energy in 2011, according to data from the Energy Information Administration. Hydroelectric dams provided 67% of the country's total renewable power in 2011, while wind supplied 25%, geothermal 4.5% and solar 3.5%, the agency said. State legislatures' mandates to power utilities remain crucial to the growth of renewables, said Rhone Resch of the Solar Energy Industries Association.

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