A 23-year-old British student has designed a "super-green superyacht" built using only sustainable materials and which produces virtually no carbon emissions. “Soliloquy’s” unique eco-luxury design allows the boat to run on two different sources of sustainable energy by incorporating 600 square meters of solar panels on the exterior of the boat and giant rigid “wings” that function like sails. Although the 58-meter boat has yet to be built, it would be able to run either on wind energy via the wings, solar power supplied by the panels or a combination of the two.