Transmission System Operator (TSO) TenneT has formalised a significant framework agreement valued at approximately €1.5 billion for the development of high-voltage offshore grid connections in the North Sea. The contract, awarded to a consortium of Nexans and Jan De Nul, covers the design, engineering, production, and installation of 525 kV DC cable systems for the BalWin4 and LanWin1 offshore wind projects. These projects represent a critical component of Germany’s offshore grid expansion, aiming to transport renewable energy from the North Sea to the industrial heartlands of Germany.
This project underscores the industry shift towards “standardised 2 GW systems”, a move TenneT has spearheaded to accelerate deployment and reduce costs through scale. The technical challenges include managing the thermal behavior of the DC cables and ensuring the protection relays are configured for the unique fault characteristics of an HVDC offshore link. This deployment is a vital step in modernising the European grid to handle the fluctuating nature of wind power at a massive scale.
Source: OffshoreWIND.biz
