Secretary of the Air Force and Deputy Secretary of Energy visit D-M
Deputy Energy Secretary Dr. Elizabeth Sherwood-Randall, middle, and Air Force Secretary Deborah Lee James speak with Greg Noble, the 355th Civil Engineering Squadron base energy manager, at Davis-Monthan Air Force Base, Ariz., March 9, 2016. Noble briefed them on the base’s solar array, the second largest in the Air Force. Both officials reviewed the base’s operations and discussed significant contributions to efficient energy use. (U.S. Air Fore photo/Airman 1st Class Mya Crosby)