160504-NAC887-001 FREMONT, Calif. (May 4, 2016) Secretary of the Navy (SECNAV) Ray Mabus prepares to deliver remarks at the World Energy Innovation Forum in Fremont, California. Mabus spoke about how the Department of Navy has decreased its dependence on fossil fuels, saving money and lives. (U.S. Navy photo by Chief Mass Communication. Specialist Sam Shavers/Released)