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TenneT Awards Around €5.5 billion Project for Grid Expansion

4C Offshore | Rameeza Haq Duggal
By: Rameeza Haq Duggal 05/05/2023 4C Offshore
TenneT has awarded around € 5.5 billion contracts to NKT, Nexans and a consortium of Jan De Nul, LS Cable and Denys to install 525 kV HVDC cable systems for ten projects in Germany and the Netherlands.

will be responsible for delivering cables to Nederwiek 3 and Doordewind 1 & 2 offshore wind farms in the Dutch part of the North Sea with total installed capacity of 6 GW. The total route length of Nederwiek 3 is approximately 288 km, Doordewind 1 has 185 km route length, and Doordewind 2 has 185 km. The contract values at around €1.5 bn and covers the majority of the project scope; while, installation scope and value will be included later. Contract call offs under the framework agreement are expected in 2025 and commissioning of the named projects is expected in 2031.

has been awarded a framework agreement for the cable connections of BalWin3 and LanWin4, to be connected at Wilhelmshaven, and LanWin2 in Lower Saxony, to be connected in the Heide area in Schleswig-Holstein. Nexans will be responsible for the full engineering, procurement, construction and installation, including civil works (EPCI) of over 2,160 km of 525 kV subsea and land cables. The initial value of the agreement is €1.7 bn, with major subcontracted works to be added once the project-specific call-offs are signed.

The consortium of Jan De Nul, LS Cable and Denys will realize the cable connections in Lower Saxony, to BalWin4 and LanWin1, both to be connected in Unterweser area, and LanWin5 in the Rastede area. This consortium has also been awarded the contract for the TenneT part of the onshore 525 kV DC corridor NordOstLink in Schleswig-Holstein Germany, a partner project with 50Hertz. The combined DC cable length of the awarded portfolio is almost 2,000 km.

The scope of work of the contracts includes cable design, engineering, production, delivery, project management, onshore, offshore and nearshore installation of 525 kV HVDC cables and all jointing works in submarine and on land sections. The selected parties expect to start activities in the course of 2023. The expected start for onshore cable laying activities will be after 2025. For offshore the cable laying activities will be in 2026. All 2 GW offshore projects are expected to be operational by 2031. The NordOstLink project is expected to be operational in 2032.

Tim Meyerjürgens, COO TenneT said: “After recent awarding of the first five cable connections and the announcement of the suppliers for the sea- and land-based converter stations, we are again very proud to announce the partners for the multi-year agreement to produce and install the cables for these crucial and innovative grid connection systems for the energy transition. Together, we will deliver around 7,000 kilometres of HVDC cable for fifteen on- and offshore grid connection systems in Germany and the Netherlands by 2032 with this award alone.”

NKT President and CEO Alexander Kara said: “We are very satisfied to once again be selected as a key partner for the ambitious 2GW Program which confirms our strong position in the high-voltage DC power cable market. We recently announced the contract award from TenneT for Ijmuiden Ver and Nederwiek 2, which are also part of the 2GW Program and will be some of the world’s first offshore wind farms to apply the 525 kV XLPE HVDC technology to offshore power cables. With this framework agreement, we continue our close collaboration with TenneT and apply this innovate cable technology to additional projects in the North Sea.”

Vincent Dessale, Chief Operating Officer and Senior Executive Vice President of Nexans said: “The need to massively invest in offshore grids in Europe can only happen by creating strong and long term partnerships between suppliers and transmission system operators – based on trust, transparency and joint technology developments. The frame agreement developed by TenneT is the perfect answer to those challenges and Nexans is proud to be involved in those ground-breaking developments and delighted to be trusted by TenneT. Our partnership can only reinforce our respective and continued dedication to the energy transition through offshore wind energy around the world.”

Philippe Hutse, Director Offshore Division at Jan De Nul Group: “From the very start, we embraced TenneT’s new approach in which cooperation and transparency is key. The resulting multi-year framework agreement gives us the much-desired planning security which we and the offshore energy industry have been desperately requesting for quite some time. Together with our consortium partners LS Cable & System and Denys, we are delighted to sign this contract with TenneT and contribute to Europe’s vision towards energy security and decarbonisation.This award represents a recognition of our expertise in the realisation of complex cable installation projects and the construction of the energy transition.

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