PlanetSolar Turanor: The World's Largest Solar-Powered Boat
# The Swiss-designed, German-built ship is 31m long and powered by over 5,380 square feet of solar paneling.
# The panels power two electric motors, which can reach 15 miles per hour.
# The panels can also soak up enough stored energy to power the boat in cloudy weather for three days.
# The excess energy is stored in a giant lithium-ion battery.