On 7 April 2010, Marcus Scherdel flew the Solar Impulse – the world’s first, manned solar-powered aircraft – for a one and a half hour test flight at Payerne in Switzerland. The aircraft is powered by 12,000 solar cells driving four electric motors. The aim is to construct a version that will enable a flight to be undertaken around the world by solar power. Later in 2010, on 7 July, piloted by André Borschberg, it achieved its first 24-hour flight. The Solar Impulse project is costed at €uro 70m.