They look a bit like modern street lamps or even oversized fountain pens that someone has stuck in the ground - but are supposed to produce energy: The Spanish company Vortex Bl

Solar Team Eindhoven has won the Bridgestone World Solar Challenge on many occasions, thanks to its highly efficient electric vehicles.

The Aptera Paradigm electric car has only three wheels, an ultra-light body and a design that resembles that of airplanes.

All BMW plants currently use energy from renewable sources. The British, Mexican and Chinese plants use solar energy, the South African plants use biogas and the German plants use wind power.