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The non-renewable energies are those energy sources that derive from resources that tend to run out on the human time scale, becoming too expensive or too polluting for the environment, as opposed to renewable ones, which are naturally replenished in a relatively short time short. Are non-renewable sources of energy: - Fossil fuels (coal, oil, natural gas) - Minerals for the production of nuclear energy (uranium, plutonium). Renewable energy or alternative energy have undoubted advantages, of which the most important are the absence of polluting emissions during their use (except for biomass) and their inexhaustible. The use of these sources does not affect their availability in the future and are very precious resources to create energy while minimizing environmental impact. This will protect the nature in respect of future generations and, moreover, limited production costs and distribution of energy (but generally only in a long-term vision). European legislation (Directive 2009/28 / EC) has made clear about which sources are actually considered renewable, so as to avoid debatable classifications or unscientific. Some renewable energy sources: Solar energy (the sun to produce chemical energy, thermal energy and electricity); Wind energy (wind as a source of mechanical energy and electricity); Hydroelectric power (energy from tides, waves and ocean currents, rainfall rain, drop of water) Agro-energy or energy from biomass (combustion in suitable plants: biogas, vegetable oils and algae, wood chips, Kernel - shells kernels and seeds of any fruit). PT Multiservice collaborates with companies that invest in research and technology for the development and I implement alternative energy in an environmentally (Green Energy). As for fuel oils, we collaborate in projects that do not involve deforestation but apply a policy of recovery of abandoned plantations or the conversion of plantations spontaneous (wild), present in tropical and subtropical band.