Energy is one of the main determinants of economic growth, but the high dependence of electricity production by fossil fuels could be a brake for the development of countries which do not have a sufficient level of richness and/or which possess a high level of environmental sensitivity. Countries tend to contrast these limits to growth using a higher percentage of renewable sources for electricity generation, though the technological limits still suffer. Renewable energy sources are appreciated worldwide for their ability to limit significantly the impact of anthropic activities on energy production and counter the gradual
