Mar 17, 2015· Iowa is 16th in the nation in coal power generation, with 72 operating coalfired power units at 28 locations totaling 6,492 megawatts (MW). As of March 2010, three proposed coal plants in Iowa faced opposition and were canceled: Dairyland Chickasaw/Mitchell Plant, the LS Power Elk Run Energy Station, and the Sutherland Generating Station Unit 4. In 2003, MidAmerican completed .