James King, vice chancellor of the Tennessee Board of Regents, "flips the switch" at the Tennessee Technology Center at Crossville's solar array as Martin Young, instructor of industrial maintenance and electricity, and Bobby Randolph, Crossville area manager for Volunteer Energy Cooperative, look on. The 4 kilowatt system installed next to the TTCC student project house is tied into the power grid and is sold to the Tennessee Valley Authority for 12 cents more per kilowatt than is charged for the power drawn from the grid. Students from several TTCC programs participated in installing the solar array and a geothermal heating and cooling system at the site. The student-built home, built to 2015 Energy Star standards, is currently up for auction, with bids due by noon April 18. The solar array and geothermal systems are not included with the home, and the winning bidder will be responsible for moving the home to a new site.