Construction begins on major offshore wind grid projects in Wietmarschen and Lingen

By: Chloe Emanuel

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19/06/2024 Amprion

Construction has commenced on the DolWin4 and BorWin4 offshore grid connections in Wietmarschen and Lingen, Germany. The transmission system operator, Amprion, has initiated the setup of construction camps in Wietmarschen, with the Tief4 consortium commissioned to work on the 12-kilometre section.

These projects are critical for connecting offshore wind farms to the power grid. The cables, running parallel to the A-Nord direct current connection between Emden and Wietmarschen, will reach the converter station in Lingen. Initial civil engineering work, including the installation of a cable protection pipe system, is slated to begin in mid-August.


Preparations include two construction camps on Rupingorter Kirchweg and Hauptstraße 100 in Wietmarschen, which will support the mobile construction site. Pre-welding of pipe strings is scheduled to start by the end of June, followed by their installation in August using both horizontal directional drilling and open trench methods.


Special crossings, such as the Dortmund-Ems Canal and the Ems river, are planned for 2025. Additionally, Amprion will utilise pipe jacking to cross the IC route between Münster and Emden near the Hanekenfähr substation.


The DolWin4 and BorWin4 systems are pivotal for Germany's energy transition, replacing the generation capacity lost from the Emsland nuclear power plant, which went offline in April 2023. These projects will bring 1.8 GW of offshore wind energy to the region when they become operational in 2028.



To access more information on subsea cables for offshore wind and interconnector projects, as well as transmission intelligence, click here.

About the Author

4C Offshore | Chloe Emanuel
Chloe Emanuel

Press Coordinator

01502 307037 chloe.emanuel@tgs.com