Exotic and native species as biomass for renewable energy.
Energy production from green combustible that does not damage the environment has gained importance. This scientific paper explores the calorific value of native and exotic species. The values are compared with fossil fuels that are currently used as main energy source. The native species analysed include cherry (Prunus avium), sycamore (Acer pseudoplatanus), yew (Taxus baccata), pine (Pinus strobus), and exotic species are limba (Terminalia superba) and rose-tree (Rosa rubiginosa). These native species are often used by people from the rural areas to produce heat and the exotic species are used in furniture manufacture. The use of wood biomass as solid combustible to produce energy ensures the decrease of CO2 and volatile substance emissions and reduces the global warming.