Deputy Secretary of Energy Dr. Elizabeth Sherwood-Randall and Secretary of the Air Force Deborah Lee James speak with Greg Noble, 355th Civil Engineering Squadron base energy manager, at Davis-Monthan Air Force Base, Ariz., March 9, 2016. Noble briefed Sherwood-Randall and James about D-M AFB’s solar array, the 2nd largest in the U.S. Air Force. Sherwood-Randall and James reviewed D-M AFB’s operations and discussed significant contributions to efficient energy use. (U.S. Air Fore photo by Airman 1st Class Mya Crosby/Released)
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