The GIS decision support tool for integration of renewable energies on a large scale and at a regional level (European Community) proposes to analyze: evaluation of renewable energy potential (solar, aeolic, biomass and minihydraulic), its articipation
in relation to primary regional energy and the potential reduction of CO2 emissions [3]; evaluation of economic and potential renewable energies to identify regions of the European Community where the renewable sources were competitive at a determined risk [4]; evaluation of renewable energy potential, calculation of the final use in the region and according to the scenario the insertion of a given renewable energy, makes its dimensioning and evaluates the economic impacts [5].