315 results found for 'dolwin6'

315 results found for 'dolwin6'
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  • Jan De Nul, Hellenic Cables Link Nordseecluster A Offshore Wind Site to DolWin Kappa Platform

    15 December 2025
    Cables, Fixed-Bottom, Grid Connection, Offshore Platforms, Project Updates, Wind Farm Update

    Jan De Nul has installed three HVAC subsea cables, delivered by Hellenic Cables, between TenneT’s offshore converter station DolWin kappa and Nordseecluster 1 and 2 sites in the German North Sea. The two locations make up the 660 MW Nordseecluster A offshore wind farm, which itself is part of a bigger, two-phased Nordseecluster project. With […]

  • Seatrium, Aibel Launch Arbitration to Settle Differences on DolWin Epsilon Project

    23 January 2026
    Business & Finance, Grid Connection, Offshore Platforms

    Seatrium’s wholly owned subsidiary, Seatrium New Energy, and its consortium partner Aibel have filed for arbitration proceedings in connection with DolWin epsilon, the offshore converter platform of TenneT’s DolWin5 grid connection. The arbitration was initiated under the consortium agreement and filed with the Arbitration Institute of the Stockholm Chamber of Commerce, Seatrium said on 22 […]

  • Jacket Foundation for BorWin Kappa Offshore Converter Platform Loaded Out in UAE

    9 February 2026
    Grid Connection, Offshore Platforms, Project Updates

    Mammoet has completed the transport, load-out and mooring of the jacket foundation for the BorWin kappa offshore converter platform at McDermott’s yard in Dubai, UAE. BorWin kappa is part of TenneT’s 980 MW BorWin6 offshore wind grid connection in the German North Sea. The Dutch company has been selected as a subcontractor to provide jacking, […]

  • Borkum Riffgrund 3 Feeds First Power Into German Grid

    4 December 2025
    Fixed-Bottom, Grid Connection, Project Updates, Wind Farm Update

    The Borkum Riffgrund 3 offshore wind farm fed its first power into the German grid on 3 December, according to Ørsted, which owns the project together with Nuveen Infrastructure. Once fully commissioned, which is expected in the first quarter of 2026, the 913 MW offshore wind farm will become the largest in Ørsted’s German portfolio. […]

  • BorWin Kappa Jacket Foundation Installed Offshore Germany

    23 March 2026
    Fixed-Bottom, Foundations, Grid Connection, Offshore Platforms, Supply Chain, Vessels

    Heerema Marine Contractors’ semi-submersible crane vessel (SSCV), Sleipnir, has installed the jacket foundation for the BorWin kappa platform, part of TenneT’s BorWin6 offshore grid connection in the German North Sea. Heerema carried out the work on behalf of McDermott International, which was awarded the engineering, procurement, construction and installation (EPCI) scope for the BorWin kappa topside and […]

  • Nordseecluster A Substation Topsides Ready for Offshore Installation

    10 February 2026
    Fixed-Bottom, Grid Connection, Offshore Platforms, Project Updates, Wind Farm Update

    Chantiers de l’Atlantique has completed the construction and integration of two offshore electrical substations for the 660 MW Nordseecluster A offshore wind farm, currently under construction off the German coast. Each of the topsides is approximately 40 metres long and 22 metres high, with one weighing about 1,800 tonnes, while the other one comes in […]

  • Allseas Takes Delivery of New Cargo Barge for Offshore Wind Substation Transport

    25 February 2026
    Vessels

    Allseas’ new cargo barge Braveheart, built by the CIMC Changhong Shipyard, which held a keel-laying ceremony for the new vessel in April 2025, has now departed China for the Netherlands. Braveheart was purpose-built to fit precisely within Pioneering Spirit‘s bow slot to enable seamless transfer of offshore structures, from decommissioned platforms heading ashore to newly […]

  • McDermott Starts Work on Second 2 GW Offshore Platform for TenneT

    18 February 2026
    Grid Connection, Manufacturing, Offshore Platforms, Project Updates, Supply Chain

    McDermott has cut first steel for the offshore converter platform for TenneT’s LanWin1 offshore grid connection in Germany. The LanWin1 project will include an offshore converter station in the North Sea and an onshore converter station in the region of Wesermarsch. The platform will be delivered under a contract GE Vernova and McDermott International signed with the […]

  • Sleipnir Installs First Hornsea 3 Offshore Substation Jacket Foundation

    25 March 2026
    Fixed-Bottom, Grid Connection, Offshore Platforms, Project Updates, Vessels, Wind Farm Update

    Heerema Marine Contractors has installed the jacket foundation for the first Hornsea 3 offshore substation using its semi-submersible crane vessel (SSCV) Sleipnir. According to a Notice to Mariners issued by the project on 20 March, Sleipnir commenced the work at the construction site offshore the UK on 19 March. The notice states that the vessel […]

  • Seatrium Unveils New Offshore Substation Design

    6 January 2026
    Business development, Fixed-Bottom, Grid Connection, Innovation, Offshore Platforms, Technology

    ABS has issued an Approval in Principle (AIP) to Seatrium for the company’s offshore substation (OSS) design, described as a next-generation offshore HVAC platform engineered for scalability. Seatrium has built several offshore converter platforms for offshore wind farms and grid connections over the years, including the now-operational DolWin epsilon in Germany and the OSS for […]

  • Jan De Nul Orders Nordlicht I Cable Protection Systems at CRP Subsea

    30 March 2026
    Cables, Contracts & Tenders, Fixed-Bottom, Grid Connection, Supply Chain

    Jan De Nul has contracted CRP Subsea to supply protection systems for inter-array cables at Vattenfall’s Nordlicht I offshore wind farm in the German North Sea. CRP Subsea will deliver 141 NjordGuard cable protection systems (CPS), with three NjordGuard CPS designs to be engineered to meet the specific installation requirements for both monopile and J-tube […]

  • Berlin Looks to Acquire Minority Stake in TenneT Germany with Multi-Billion Plan

    17 November 2025
    Business & Finance

    Germany has earmarked a budget ceiling of EUR 7.6 billion for the possible purchase of a minority stake in the German arm of transmission system operator (TSO) TenneT, subject to parliamentary approval. Reuters reported on 12 November 2025 that Germany intends to spend over multiple years to acquire a stake in the unit, starting with […]

  • TenneT’s 900 MW German Offshore Grid Connection System Fully Energised

    17 October 2025
    Grid Connection, Offshore Platforms

    The Dutch/German transmission system operator (TSO) TenneT Germany has commenced the commissioning of the 900 MW DolWin5 offshore grid connection system. Following the completion of the installation campaign in the summer, the consortium of Aibel and Seatrium, together with Hitachi Energy and TenneT, started commissioning as planned in the autumn, said the TSO. In addition […]

  • MENCK Hammer Ordered for DolWin Kappa Offshore Converter Platform

    4 March 2021
    Contracts & Tenders, Grid Connection

    MENCK, part of Acteon, has signed a contract with Allseas to deliver pile-driving and handling equipment for the installation of TenneT’s DolWin kappa offshore converter platform, the centerpiece of the DolWin6 offshore grid project in the German North Sea. A submersible MHU 3500S hydraulic hammer, capable of driving monopiles and smaller sized piles, will be […]

  • Tecade Sends Off DolWin6 Steel

    17 January 2020
    Grid Connection

    Spanish steel fabricator Tecade has shipped off the final leg extensions manufactured for the DolWin6 offshore platform. The leg extensions were delivered to Dragados Offshore in Puerto Real where they will be integrated into the substation for further shipment to the German North Sea, Tecade said. Tecade’s scope of work includes the manufacture and delivery […]

  • TenneT’s DolWin Kappa Platform Sails Away

    8 August 2022
    Business & Finance, Grid Connection, Vessels, Wind Farm Update

    The DolWin kappa offshore platform, part of the DolWin6 grid connection project, has sailed out from the Dragados shipyard in Cádiz, Spain, and is en route to the Port of Rotterdam in the Netherlands. After three years of construction, the platform was loaded on the transport barge Iron Lady on 5 August and headed to […]

  • TenneT Starts Laying DolWin6 Export Cables

    29 June 2021
    Grid Connection

    Offshore cable-laying work to link the DolWin6 grid connection in the North Sea to the German grid has started, TenneT said. The cable-laying work follows an unexploded ordnance removal campaign where a total of twelve UXOs identified along the sea cable route were removed in May 2021. The 39-kilometre export cable section is expected to […]

  • First DolWin Kappa Steel Cut

    17 July 2019
    Grid Connection

    Transmission system operator TenneT has cut the first steel for the DolWin kappa offshore converter platform, the centerpiece of the 900MW DolWin6 HVDC connection. Spain’s Dragados Offshore is responsible for the design, supply, construction, transportation and installation of the DolWin kappa platform and the accompanying jacket foundation. Siemens will supply the entire technology for the […]

  • DolWin6 Onshore Construction Starts in Emden

    24 October 2019
    Grid Connection

    Transmission system operator TenneT has started construction work in Emden, Germany at the site of the onshore converter station which will be part of the DolWin6 grid connection. The foundation work for the converter station in Emden will continue over the next six months with one thousand piles up to 24 metres long being drilled into the […]

  • TenneT Tenders Structrual Health Monitoring for Twelve Offshore HVDC Platforms

    21 September 2021
    Contracts & Tenders, Grid Connection

    TenneT has issued a call for tenders for Structural Health Monitoring systems (SHM systems) and their installation on twelve offshore HVDC platforms, including both existing and platforms yet to be installed offshore. Under a five-year, EUR 3.25 million contract, the tender winner will develop and install a monitoring concept for the support structures of the […]

  • Austrian Company to Equip TenneT’s Offshore Platforms in Germany with Structural Health Monitoring Systems

    28 March 2022
    Contracts & Tenders, Grid Connection

    VCE Vienna Consulting Engineers ZT has been awarded a contract to install Structural Health Monitoring (SHM) systems on twelve TenneT’s HVDC platforms in Germany. On nine platforms, which are in operation, the installation of the SHM systems will be carried out offshore during operation, while for the three platforms which are under construction or in […]

  • Installation of DolWin Kappa Offshore Platform Underway

    22 August 2022
    Contracts & Tenders, Grid Connection, Wind Farm Update

    Allseas’ installation vessel Pioneering Spirit has installed the foundation structure for the DolWin kappa offshore platform in the German North Sea, according to TenneT’s latest social media post. After three years of construction, the platform sailed out from the Dragados shipyard in Spain on 5 August and was en route to the Port of Rotterdam […]

  • DolWin6 Coating Ordered from Spain

    31 May 2019
    Contracts & Tenders, Grid Connection

    Gaditana de Chorro y Limpieza has won a contract to carry out coating works on the DolWin6 grid connection in the German North Sea. The Spanish company is in charge of the surface preparation and coating application of the offshore substation, jacket foundation, bridge connection, and offshore hook-ups and touch-ups after transport and installation. The […]

  • DolWin Epsilon Converter Platform Sets Sail from Singapore to Europe

    16 October 2023

    The 900 MW DolWin Epsilon offshore converter platform has left Seatrium’s shipyard in Singapore and is heading towards Aibel’s yard in Haugesund, Norway, where it is expected to arrive in the second half of December. After three years of construction and with more than ten million manhours, the heavy transport vessel Mighty Servant 1 has […]

  • DolWin6 Cable Installed

    13 July 2021
    Grid Connection, Vessels

    DEME has completed the laying of the HVDC cable for the DolWin6 offshore grid connection in the German sector of the North Sea, using its LNG-powered, DP3 vessel Living Stone. According to the company, this was the first time a cable laying vessel installed cables while running on LNG. The 900 MW transmission link DolWin6, […]

  • DolWin6 Contracts Land on Siemens, Dragados Offshore, Nexans Desks

    17 July 2017
    Contracts & Tenders, Grid Connection

    Siemens has received an order from TenneT to supply the entire technology for efficient direct-current transmission for DolWin6, a grid connection for offshore wind farms in the German waters of the North Sea. The order is valued at high three-digit millions euros range.