As its name suggests, the Solarbike happens to be a solar powered electric bicycle, receiving some Scandinavian design love by Jesper Frausig in Denmark. Photovoltaics have certainly improved by leaps and bounds over the years, and so too, have there been progress made in the world of bottle batteries and hub motors.
According to Frausig, “The on-wheel solar cells deliver clean energy directly to the battery. While the Solar Bike is standing still, it charges the battery. When it is in motion, the solar cells and the battery provides energy for the motor.” The Solarbike lays claim to a 70km (43 mile) range and a maximum speed of 50 km/hr (30 mph) with a standard speed of 15 mph.