ABSTRACT
As per the definition of the International Energy Agency, Paris, renewable energy resources include renewable combustibles and waste (solid biomass, charcoal, renewable municipal waste, gas from biomass and liquid biomass), hydro, solar, wind and tide energy. In 2006, world Total Primary Energy Supply (TPES) was 11,741 Mtoe, (millions of tonnes of oil equivalent) of which 12.7% or 1493 Mtoe was produced from renewable energy sources. The percent shares of the main fuel categories in total renewables are: Combustible renewables and waste (78.1%), Hydropower (17.5%), Geothermal, solar, wind, tide, etc. (4.4%).
