In the changing world with ongoing increase in energy demand and relatively the negative effect on the environment through fossil fuels has raised dramatical challenges. Renewable energy sources are increasingly considered as potential solutions for a sustainable energy production and reduction of negative environmental impact is aimed. In Italy, the need to decrease the country’s historical dependence on fossil fuels and supply flows of hydrocarbons from Eastern Europe, Middle East and North Africa has caused an irresistible urge to produce green energy. Therefore, in the twentieth century, Italy has become one of the leading countries in the development of green energy production.