Torre solare a Sanlucar la Mayor, Spagna

(AP Photo/Miguel Angel Morenatti)

23/09/2009 - This is a view of the new PS20 solar tower at the Solucar Platform in Sanlucar la Mayor, southern Spain. PS20, one of the most powerful commercial solar tower in the world, consists of a solar field made up of 1,255 mirrored heliostats producing a steam which is converted into electricity generation by a turbine.