MS Tûranor Planet Solar, 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 31-meter 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. There are 8.5 tons of lithium-ion batteries in the ship's two hulls. The boat's shape allows it to reach speeds of up to 14 knots. The hull was model tested in wind tunnels and was tank tested to determine its hydrodynamics and aerodynamics. The boat has been designed to be used as a luxury yacht after the record attempt is finished.

During the expedition, Tûranor PlanetSolar broke two records: the fastest crossing of the Atlantic Ocean by solar boat and the longest distance ever covered by a solar electric vehicle.

This past week, the largest solar-powered boat in the world has been sailing the Croatian Coast and On 28th August came on visit to Dubrovnik- Gruz Harbour.