In the past centuries, mainly natural resources were needed for survival (fishing, hunting, fire, crops and other). With the continuing growth and development of our civilization, electricity became a basic component of every single moment of our lives. Without it nothing works any more! Following this basic need, in the last century, man has made use of resources which however with time contributed greatly to the pollution of our planet. Moreover, these sources are not eternally available and already in short supply nowadays.International negotiations to protect the environment growing evidence of the need to develop projects for the production of energy through non-use, but use of natural sources, such as wind, sun and water to minimize the emission of CO2 in 'atmosphere, the main cause of the warming of the earth and responsible for climate change.