In view of the Federal Government’s decision to phase out nuclear and coal-fired power generation by 2038, a rapid expansion of the German transmission grid will be crucial. To ensure an efficient expansion of the network, choosing the right pipe systems and connection techniques will be major success factors.
Currently, the share of renewable energies is around 46 percent, scheduled to be increased to a level of 65 percent by 2030. Besides power generation, transportation of electricity to the consumer represents a challenge. In the future, it will not always be possible to generate electricity close to the consumer. Most of our future wind energy will be generated in the North Sea and Baltic Sea. To reconcile the increasing energy demand with the climate
goals while at the same time ensuring security of supply, powerful electricity grids adapted to renewable energies are required. According to the Network Development Plan for Electricity 2019–2030, the Federal Network Agency intends to build 3,600 additional grid kilometres by 2030. One part of the solution is an expansion via extra high-voltage-direct current (HVDC) transmission. The expansion plan includes three direct current routes designed to transport the electricity from the North to the South: Südlink, Südostlink, A-Nord (Ultranet) plus a planned fourth route. The corridor for the fourth DC route leads from Heide in Schleswig-Holstein via Wilhelmshaven to Polsum in North Rhine-Westphalia.