SuedOstLink C1

Technical data

Project description

SuedOstLink is a direct current underground cable line between the grid connection points Klein Rogahn near Schwerin in Mecklenburg-Western Pomerania and Wolmirstedt in Saxony-Anhalt with the ISAR grid connection point near Landshut in Bavaria. Section C1 is part of the SuedOstLink. This stretches from Münchenreuth to Marktredwitz and comprises around 55 kilometres of cable route.

• 2 cable strands, each with 2 lines and fibre optic accompanying cables
• 525 kV direct current line
• Total transmission capacity of 4 gigawatts

Construction method

• The scope of the contract includes laying the cable conduits over a length of 44 kilometres using the open trench method and 11 kilometres using the closed trench method. The closed trench method includes 3 pipe jacking operations and 42 horizontal directional drilling operations.
• Construction of 42 sleeve pits for the cable duct including earthing work and fibre optic switch cabinets
• The bedrock in the northern section of the route will be partially blasted or mechanically loosened using the open-cut method

Geology

Frequently changing homogeneous areas in almost all known soil classes. The soil is partially processed and reinstalled in the technical structure.

General data

Project

SuedOstLink C1

Client

TenneT TSO GmbH

Contractor

ARGE SOL C1 consisting of Wayss & Freytag Ingenieurbau AG and Köster GmbH

Construction period

2024 to 2027