Master Sgt. James Fraser, noncommissioned officer in charge of quality assurance for the 611th Civil Engineer Squadron at Elmendorf Air Force Base, Alaska, inspects the turbine nacelle of a wind turbine generator prior to being installed at the top of its 110-foot tower. The wind turbine generator is being installed at the Tin City Long Range Radar Station on the Alaskan coast near the town of Tin City. (U.S. Air Force photo)