The world’s largest solar-power boat set sail recently from Monaco. This advanced concept vessel uses a basic catamaran design with central hull. It is nearly 100 feet long and 50 feet wide, and cost approximately 13 million dollars. This unique new boat is designed to reach sustained speeds of about 15 knots, and has a deck surface which is covered with solar cells. Storage batteries below deck allow it to store electrical power for its engines for three days without sun. Following initial ocean trials the new vessel will attempt a round-the-world voyage in approximately 160 days, with visits to major ports along the way. To see the video of this exciting new craft in action CLICK.