Lab Tour Conversation Air Force Gen. Paul J. Selva, vice chairman of the Joint Chiefs of Staff, speaks while visiting the National Renewable Energy Laboratory in Golden, Colo., July 8, 2019. NREL facilitates the research, development, commercialization, and deployment of renewable energy and energy efficiency technologies. SHARE IMAGE: Download Image: Full Size (1.08 MB) Tags: Science, Joint Chiefs, Vice Chairman, Technology, Selva Photo By: Army Sgt. James K. McCann VIRIN: 190708-D-SW162-2235C.JPG Photo Gallery