STRABAG AG has been awarded a major contract by TenneT TSO GmbH to carry out civil engineering works for a 68-kilometer section of the SuedLink power transmission project in Lower Saxony. This section, known as B1, stretches between Scheeßel and Schwarmstedt, crossing through the Rothenburg and Heidekreis districts.
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Key Highlights of STRABAG – SuedLink Contract:
- Client: TenneT TSO GmbH
- Contractor: STRABAG AG
- Project: SuedLink Direct Current Power Line
- Section Awarded: 68 km (Section B1) between Scheeßel and Schwarmstedt
- Location: Lower Saxony (districts of Rothenburg and Heidekreis)
- Construction Start: Early work (HDD drilling) to begin in September 2025
- Construction Method: Open trench and HDD horizontal directional drilling
- Scope: Civil engineering works including river undercrossing at Aller (near Walsrode)
- Total Length of SuedLink: ~700 km across Germany
- Grid Operators: TenneT (north), TransnetBW (south)
- Project Importance: Part of Germany’s energy transition to renewable power
- Milestone: All 15 SuedLink section contracts now awarded
The project is part of Germany’s 700-kilometer-long SuedLink direct current line, a crucial infrastructure designed to transport renewable electricity from northern to southern Germany. Once completed, it will strengthen the national grid and support the country’s energy transition.
Construction activities are set to begin in September, with STRABAG starting early works that include a horizontal directional drilling (HDD) operation near Walsrode to safely cross under the Aller river. The main construction work is expected to begin by the end of 2025, pending the final planning approval.
While most of the SuedLink cable will be installed using the open trench method, HDD technology will be applied where the route encounters natural or built obstacles, such as rivers and roads.
This new contract follows several previous SuedLink and SuedOstLink awards to STRABAG, underlining the company’s strong role in the development of Germany’s modern energy infrastructure. With this award, all 15 SuedLink section contracts have now been allocated, marking a major step forward in delivering one of Europe’s most significant grid expansion projects.
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