In a bid for energy independence, a UW campus will try heating with biodiesel. Professor John Katers at UW Green Bay says this is a test of the alternative fuel. Next fall, the university will install a new fuel tank and other equipment, then begin with a mix of about 20% biodiesel and 80% percent heating oil next December. The economics of biodiesel is dictated in part by the cost of corn. A grant from Wisconsin's Focus on Energy program is helping cover some costs of the test.