MS Tûranor PlanetSolar, known under the project name PlanetSolar, is the largest solar-powered boat in the world The vessel was designed by LOMOcean Design, built by Knierim Yachtbau in Kiel, Germany, and launched on 31 March 2010.
The boat is covered in over 500 square meters of solar panels rated 93 kW, which in turn connect to one of the two electric motors in each hull. Although its hull is capable of hosting 200 persons, the shape of the boat means that it is be able to reach speeds of up to fourteen knots. The boat's hull has been model tested in wind tunnels and has been tank tested to determine the hydrodynamics andaerodynamics of the hull. This 31 meter long boat has been designed to be used as a luxury yacht after the record attempt is finished.
The first Solar Powered Boat that Circumnavigated the World.On Septebmer 27, 2010, the MS Turanor PlanetSolar set sail from the port of Monaco. The goal? To become the first solar-powered ship to circumnavigate the globe. On May 6 2012 the boat completed 587 days, 28 countries, 3 oceans, 11 seas and 60,006 km
via : Wikipedia