In 2001, Quaker Oats offered to donate excess oat hulls to the University's power plant to be used as biofuel for the campus boiler. The oat hull project has reduced campus emissions by 20 percent, which easily satisfied the University's 4 percent emissions reduction target for the 2006 period under the Chicago Climate Exchange program. The University has a cogeneration plant and is a partner in the Environmental Protection Agency's Combined Heat and Power system program. Students and University officials are also investigating the feasibility of a hyrdoelectric facility, installing green roofs, and constructing a wind farm on or near campus.