Cable production starts for Tennet grid connection systems
The start of cable production is part of the TenneT’s framework agreement with the consortium of the Jan De Nul Group, LS Cable & Systems and Denys.
Image for illustration purposes.
The Netherlands, Arnhem: The start of production at LS Cable in Donghae, South Korea is the beginning of a new technological chapter for TenneT’s offshore grid connection systems. The 525 kV cables raise the transmission capacity for offshore wind energy to a new voltage level, making it possible to transmit 2 GW of direct current over long distances with low losses. Until now, 320 kV cables have been used for offshore grid connections, as in TenneT’s 900 MW projects.
The start of cable production is part of the TenneT’s framework agreement with the consortium of the Jan De Nul Group, LS Cable & Systems and Denys. The contract covers the production and installation of four 525 kV DC cable systems for grid connection projects in the North Sea. The first DC cables are intended for the BalWin4 and LanWin1 grid connection projects.
In addition to a positive and negative pole, an additional cable, a metallic return conductor, will be laid for both connections in the future, ensuring that electricity can continue to flow in the event of maintenance or repair work. The three cables will be supplemented by an additional communication cable. A total of 1650 km of cable will be produced.
Production will last until 2028, while laying at sea is expected to begin in the second half of 2026. The Jan De Nul Group will use the extra-large cable-laying vessel Fleeming Jenkin, specially designed and ordered for the transport and laying of the 525 kV DC cables on the seabed. The construction of the land cable is scheduled to start in the second half of 2026 by the construction company Denys.
Source: TenneT
#cables#Denys#grid connection systems#Jan De Nul Group#LS Cable#Netherlands#production#Tennet