The price of oil is going through the roof. There is concern about the protection of the environment and public health. These factors mean that we should look to renewable energy sources, which we already have at our disposal. SoDa is a European web server designed to collect and provide data relating to solar radiation in Europe and Africa. And it does it on the base of pictures from the meteorological satellites, including one called Meteosat. Solar radiation levels differ from one country to another and from one region to the next.