TYPES OF RENEWABLE ENERGY SOURCES
Wind Energy: the kinetic energy which is produced by the power of the wind and is converted, by wind turbines, into usable mechanical energy and/or electricity.
Hydraulic Energy: the energy of waterfalls, which is exploited by small hydroelectric plants (up to 15 MW in installed capacity), to generate electricity or to convert it into usable mechanical energy.
Biomas: the biodegradable fraction of products, wastes and residues from agriculture, including vegetal and animal matter, forestry and related industrial activities, as well as the biodegradable fraction of industrial wastes, municipal sewage and municipal solid wastes.
Biogas: the fuel gas produced from biomass and/or from the biodegradable fraction of industrial and domestic waste matter (landfills, wastewater treatment plants, etc.), that can be purified and upgraded to natural gas quality, to be used as a biofuel.
Solar Energy, which encompasses the following:
Active Solar Systems: convert solar radiation into heat.
Bioclimatic Design and Passive Solar Systems: Concern architectural solutions and the use of suitable construction materials for the maximisation of the direct use of solar energy for heating, air conditioning or lightning of interior spaces.
Photovoltaic Solar Systems: convert solar energy directly into electricity.
Geothermal Energy: the thermal energy which comes from the earth’s interior and manifests itself in natural steam releases, in surface or underground hot waters and in hot dry rocks.