Originally, the German electricity sector was primarily based on a system with large-scale power plants close to consumption and their mutual backup. This system is increasingly being replaced by a system in which generating is volatile in time, supply-dependent, and where power plants are remote from load centres. Along with this development, the network side transforms from an interconnected European grid system into a European transmission system, i.e. a network with directed power transmission and new functional system elements.
As part of the report, the following questions in particular were addressed to the Graz University of Technology:
As requested by the Federal Network Agency, the grid expansion requirement was determined based on the network development plan of the transmission system operators and by taking the (n-1) reliability into account, for two special cases of transport corridors.