Ninety-three (93) percent of the coal consumed in the U.S. is used to generate electricity.
U.S. Energy Information Administration, U.S. Coal Supply and Demand, 2010 Review, June 2011.
http://www.eia.gov/coal/review/html/tbl1.cfm.
Coal is also used in the steel, paper, cement, plastics, and other industries.
U.S. Energy Information Administration, Energy Kids, http://www.eia.doe.gov/kids/energy.cfm?page=coal_home-basics.