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Nexans Launches Production of 525 kV HVDC Cables for LanWin2 Offshore Grid

Nexans Launches Production of 525 kV HVDC Cables for LanWin2 Offshore Grid

First seen 17 Oct 2026, 16:47 UTC • •
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ThreatCluster AI
ThreatCluster •October 18, 2026 at 09:08 UTC
  • •Nexans begins industrial-scale production of 525 kV HVDC cables for LanWin2.
  • •The project will transport 2 GW of offshore wind power from the North Sea to Germany.
  • •Commissioning of the LanWin2 grid connection is expected in 2031.

Nexans has commenced the production of 525 kV high-voltage direct current subsea cables for the LanWin2 offshore grid connection in Germany. This marks the first industrial-scale manufacturing of Nexans' 525 kV HVDC cross-linked polyethylene technology at its Halden facility in Norway. The contract, valued at approximately EUR 1 billion, was awarded to Nexans in January 2025 under a framework agreement with TenneT. The project aims to transport 2 GW of offshore wind power from the German North Sea to the Heide region in Schleswig-Holstein, with commissioning expected in 2031. The start of production follows successful technology qualification, transitioning the project into full-scale manufacturing and delivery. The project is part of TenneT's broader offshore grid expansion program, which includes other projects like BalWin3.

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Timeline

2025-01-05
Nexans awarded LanWin2 contract
Nexans secured a contract worth EUR 1 billion for the LanWin2 project under a framework agreement with TenneT.
Indexbox
2025-09-01
First steel cut for offshore converter platform
The consortium of Siemens Energy and Dragados Offshore cut the first steel for the offshore converter platform for LanWin2.
Indexbox
2026-10-16
Nexans starts cable production
Nexans officially began the production of subsea cables for the LanWin2 project, marking a significant milestone in the project timeline.
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Common questions

What is the significance of the 525 kV HVDC cables?
These cables are crucial for transmitting high amounts of electricity over long distances, particularly from offshore wind farms.
When is the LanWin2 project expected to be operational?
The commissioning of the LanWin2 grid connection is anticipated in 2031.
What other projects are associated with TenneT's framework agreement?
The framework agreement includes other projects like BalWin3, which is also part of TenneT's offshore grid expansion.