The Solar Impulse project: it aims to have an airplane take off and fly autonomously, day and night, propelled uniquely by solar energy, right round the world without fuel or pollution.
Builder of actually flying solar gliders (Sunseeker 2), a 2-seated solar glider Sunseeker 3 and a solar Sunship. Sunseeker 2: Solar Flight’s revolutionary solar-powered airplane, currently flying regularly in Europe.