This page gives some insights into the German Electricity Scheme and the Challenges that are imminent when changing an Industry Nation to Renewable Energies.
Sources for Data:
The ENTSO-E D data are designed to publish electricity figures that flow through the grid. It does not take SelfGeneration into account. Therefore the figures and charts are not representing the whole electricity demand in Germany. Nevertheless, it gives a good idea of the power that is transported over the grid and traded between the different actors