“…Numerous solar database and estimation tools are available worldwide, a significant progress being made in this direction in last time. 25,26 Among of these should be mentioned PVGIS, SoDa, HelioClim, NASA-SSE (Surface Meteorology and Solar Energy programme), Meteonorm, Satel-light, etc, where, in order to account the spatial distributions of solar radiation, the solar radiation models have been integrated within geographical information systems, obtaining so very powerful solar radiation analysis tools and database. The SoDa project is based on the information acquired by processing the satellite images, most of the database resources being available in the graphical and tabular format, the database being available through SoDa services.…”