Status of the National Implementation of the NC RfG in Germany

Grid integration of decentral power generation units and storage systems as well as new requirements from the “Network Code on Requirements for Grid Connection of Generators” (NC RfG) by the European Union lead to new grid codes in all countries of the EU. In Germany the VDE “Association for Electrical, Electronic & Information Technologies” will publish new grid requirements for power generating facilities and storage systems in the next two years. The grid codes for all voltage levels from low voltage to ultrahigh voltage are being revised at the moment. It is expected that the first public draft of the medium voltage level grid code (VDE-AR-N 4110) will be available in autumn 2016. This medium voltage grid code uses concepts of the latest public high voltage grid code VDE-AR-N 4120 which will be amended itself according to the requirements from the NC RfG. In a further step the test and certification requirements will be updated in Germany by the FGW. This paper provides an overview on the current status of the grid code requirements and the test, simulation and certification guidelines in Germany.