aurino giovanni (italy), gagliardi giacomina (italy)
For billions of years plants get the necessary energy to live directly from the sun by some physical and chemical reactions called photosynthesis, nowadays it is possible to make all this process technologically by the Artificial Photosynthesis. Get energy by the sun by the creation of an artificial leaf, high 2,5 m that thanks to the use of water and sun, can produce hydrogen at very low cost and so energy to use directly on the place. When the water flows on the leaf there is the separation between oxygen and hydrogen, immediately taken in two different containers and mixed again in a combustible cell that takes heat and electricity by the transformation of the two gases into water again. The more ecological aspect is just the complete absence of harmful emissions and the continual recycle of the water.