150610-N-LV331-001 WASHINGTON (June 10, 2015) Secretary of the Navy (SECNAV) Ray Mabus delivers remarks during the 2015 GreenGov Symposium at George Washington University. Mabus spoke about the department of the Navy's energy goals and answered questions during a discussion with Marilyn Crouther, senior vice president and general manager of Hewlett-Packard Enterprise Services U.S. Public Sector. (U.S. Navy photo by Mass Communication Specialist 2nd Class Armando Gonzales/Released)