Belgian offshore contractor Jan De Nul has concluded the 2025 transport and installation campaign of three HVAC grid connection cables at TenneT’s DolWin kappa platform…
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Belgian offshore contractor Jan De Nul has concluded the 2025 transport and installation campaign of three HVAC grid connection cables at TenneT’s DolWin kappa platform.
When finalized, these cables will ensure the transport of almost 660 MW renewable electricity from two offshore wind farms, which is enough energy needed to power more than 800,000 German homes.
Jan De Nul and partner Hellenic Cables are responsible for design, production, transport, installation and protection of three 155 kV HVAC cables with a total length of 37 km. These cables provide a stable connection from the offshore wind farms Nordseecluster 1 and 2 to the offshore converter station DolWin kappa.
Cable-laying vessel Isaac Newton transported the three 155 kV cables from Hellenic Cables’ vertically integrated submarine cable plant in Corinth, Greece. The vessel installed them between the TenneT offshore converter station DolWin kappa and the two offshore wind farm locations of Nordseecluster 1 and 2. At crossings with other subsea infrastructures, the vessel installed concrete mattresses.
The multi-purpose vessel Adhémar de Saint-Venant buried the cables along the entire cable routes using
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