Définition
Energy derived from natural processes in perpetual renewal, particularly those of solar, wind, hydraulic, geothermal or vegetal origin (wood, biofuels etc.).
Renewable energy sources include solar (photovoltaic or thermal), wind (wind turbine), river and ocean water (hydraulic, tidal, etc.), biomass, whether solid (wood and biowaste), liquid (biofuels) or gaseous (biogas), as well as heat from the earth (geothermal) and heat extracted by heat pumps.