GREENS (1 of 2) (IMAGE) Office of Naval Research Caption A 300-watt photovoltaic battery system, developed by the Office of Naval Research, can provide continuous power to Marines in the field. The solar-powered battery, called the Ground Renewable Expeditionary ENergy System (GREENS), is designed by the Advanced Power Generation Future Naval Capabilities program located at the Experimental Forward Operating Base at Marine Corps System Command Transportation Demonstration Support Area in Quantico, Va. Credit U.S. Navy photo by John F. Williams/Released Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.