One thing is – oil prices keep growing fast. The other, even more important – our planet is running out of oil sooner or later, presumably in 70 (Last forecast) to 150 years. Everything on earth is fueled by the sun, even our oil reserves. So it's necessary to gain energy directly from the sun – in fact to install energetic “sensors” that take in the never-ending flow of energy. Today mankind has invented solar cells that convert one FIFTH of the energy flow coming from the sun directly into usable electrical energy. The base of these solar cells is a high-tech material made from usual beach sand – silicon.