Current state of the corridor and route determination process
The start and end points, i.e. Wolmirstedt and Isar near Landshut, define a new survey area, in which 50Hertz has determined suitable route corridor variants for the SuedOstLink together with its project partner, fellow transmission system operator TenneT. These corridors are 500 to 1,000 metres wide and their various combinations connect the start and end point of the line construction project.
In the first half of 2017, the project developers submitted documents for federal sector planning to the Federal Network Agency for the project, subdivided into four sections A to D. These documents contain a so-called corridor proposal as the connection between Wolmirstedt and Isar considered the most favourable by the project developers. The application furthermore contains different serious alternatives. In order to determine these routes, the project developers considered over 60 factors, including residential areas, nature conservation areas and possible bundling options. The final decision on the corridor is made by the Federal Network Agency in its decision on the federal sector planning.
During the second step, the so-called plan approval procedure, the specific details on the execution of the actual route are determined. These include the exact course of the underground cable, the location of the cable connections, or in case of overhead line sections, specific tower locations. Also decided at this stage are adequate compensatory and replacement measures. This procedure, too, is handled by the Federal Network Agency.