Skippers Raphael Domjan of Switzerland and Gerard D'Aboville of France (L) stand on the bridge of the solar boat "PlanetSolar" following a ceremony at the HDW shipyard in Kiel February 25, 2010. The largest solar boat in the world was built by the shipyard of Knierim Yachtbau in Kiel, Germany. The 100-foot-long and 52-foot-wide catamaran, topped with about 5,380 square feet of photovoltaic solar panels, will start its maiden voyage around the world in 2011.