319 results found for 'DolWin5'

319 results found for 'DolWin5'
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  • 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 […]

  • 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 […]

  • 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 […]

  • 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. […]

  • 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 […]

  • Subsea Cable Connecting DolWin Epsilon Platform to Land Installed

    23 July 2025
    Cables, Grid Connection, Offshore Platforms

    The laying of the subsea cable that connects the DolWin epsilon platform to land has been completed. The platform and the cables, part of TenneT’s DolWin5 grid connection, will transmit the electricity generated by Ørsted’s Borkum Riffgrund 3 offshore wind farm to the German grid on land. The DolWin epsilon platform was installed this June. […]

  • 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 […]

  • GE Vernova-Seatrium Consortium to Build BalWin 5 Offshore Converter Platform

    11 December 2025
    Contracts & Tenders, Fixed-Bottom, Grid Connection, Manufacturing, Offshore Platforms, Supply Chain

    The GE Vernova-Seatrium consortium has been awarded a contract to deliver the offshore converter platform for TenneT’s 2.2 GW BalWin5 offshore grid connection in the German North Sea. The contract is the fourth one awarded under the five-year framework agreement that GE Vernova and Seatrium signed with TenneT in 2023, and marks the consortium’s first […]

  • TenneT to Soon Decide Whether to Launch IPO or Private Share Placement for German TSO; German Gov’t Still Considering Buy-In

    25 July 2025
    Authorities, Business & Finance, Grid Connection

    TenneT Holding is exploring two options to meet TenneT Germany’s equity requirements: a private placement of shares and an initial public offering (IPO), and expects to decide on which option to proceed with in September. The German government has not yet excluded the possibility of buying into the German transmission system operator (TSO). On 15 […]

  • NKT Installs Power Cables at TenneT’s BorWin5 Offshore Grid Connection

    28 August 2025
    Cables, Grid Connection, Offshore Platforms

    Denmark’s NKT has finalised the installation of a 320 kV high-voltage DC (HVDC) power cable system at the 900 MW BorWin5 offshore grid connection in Germany. The pull-in work to the offshore platform was carried out by the company’s NKT Victoria vessel. NKT was responsible for the delivery and installation of 230 kilometres of 320 […]

  • 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 […]

  • RWE, Apollo Global Management Forming Joint Venture to Invest EUR 3.2 Billion in German TSO

    8 September 2025
    Business & Finance, Grid Connection

    RWE and the global asset manager and infrastructure investor, Apollo Global Management, have signed an agreement under which Apollo will pay EUR 3.2 billion to RWE in exchange for an equity stake in a to-be-established joint venture (JV), which will hold RWE’s existing 25.1 per cent stake in the German transmission system operator (TSO) Amprion. […]

  • Seatrium Contracts Mammoet for 2 GW Offshore Platform Load-Out Ops

    4 February 2026
    Contracts & Tenders, Grid Connection, Offshore Platforms, Supply Chain

    Mammoet has signed an agreement with Seatrium for the load-out of three substations for TenneT’s 2 GW offshore wind grid connection programme. In 2023, TenneT signed a five-year Framework Cooperation Agreement with the GE Vernova-Seatrium consortium and awarded the consortium with contracts for three Dutch projects: IJmuiden Ver Beta, IJmuiden Ver Gamma and Nederwiek 2. […]

  • Fabrication of Nederwiek 2 Platform Starts in Singapore, Indonesia

    10 February 2026
    Grid Connection, Manufacturing, Offshore Platforms, Supply Chain

    The GE Vernova-Seatrium consortium has started work on the third offshore converter platform for TenneT’s 2 GW programme, having cut the first steel for the Nederwiek 2 platform, which will be installed in the Dutch part of the North Sea. The cutting of the steel was celebrated on 5 February at shipyards in Singapore and […]

  • EnBW Selects Helicopter Providers for Offshore Wind Farms in German North Sea

    23 September 2025
    Business & Finance, Contracts & Tenders, Supply Chain

    EnBW has selected HTM Helicopter Travel Munich and HeliService to provide helicopter transport services for the company’s offshore wind farms in the German North Sea. HTM Helicopter Travel Munich and HeliService were selected to provide aerial and related services for EnBW’s Hohe See, Albatros, and He Dreiht offshore wind farms in Germany. EnBW plans to […]

  • TenneT’s DolWin Epsilon Converter Platform Installed

    10 June 2025
    Grid Connection, Offshore Platforms

    The DolWin epsilon converter platform, part of the DolWin5 offshore grid connection, has been installed in the German North Sea. After three years of construction at Seatrium’s shipyard in Singapore, the 82-metre-long platform has covered approximately 13,000 nautical miles to Norway in 60 days. There, Aibel and Hitachi Energy installed the final technical equipment, including […]

  • 900 MW DolWin Epsilon Platform to Begin Journey to German North Sea

    29 May 2025
    Grid Connection, Offshore Platforms

    The 900 MW DolWin epsilon platform is getting ready to sail into the German North Sea, the transmission system operator (TSO) TenneT announced on 28 May. After three years of construction at Seatrium’s shipyard in Singapore, the 82-metre-long platform has covered approximately 13,000 nautical miles to Norway in 60 days. There, the structure received its […]

  • All Inter-Array Cables In Place at Germany’s 960 MW Offshore Wind Farm

    1 July 2025
    Cables, Project Updates, Wind Farm Update

    All inter-array cables have been installed at EnBW’s He Dreiht offshore wind farm in the German North Sea. Seaway7 said on 1 July it completed the installation of the last inter-array cable, connecting the 13th and last string of the He Dreiht project to the BorWin epsilon converter platform, part of the BorWin5 grid connection. […]

  • First Steel Cut for 2 GW German Offshore Grid Connections

    16 June 2025
    Grid Connection, Offshore Platforms

    The first steel has been cut for the BalWin1 and BalWin2 grid connection systems that will be installed in the German North Sea. Last week, Meyer Werft, together with the German transmission system operator (TSO) Amprion, Dragados Offshore, and Siemens Energy, celebrated the start of production of the converter platforms for the BalWin1 and BalWin2 […]

  • TotalEnergies Winner of German 1 GW Offshore Wind Auction

    17 June 2025
    Authorities, Business & Finance, Planning & Permitting

    TotalEnergies has been selected as the winner of the latest German tender for the N-9.4 offshore wind site in the North Sea, which can accommodate 1 GW of installed offshore wind capacity. TotalEnergies, through its subsidiary Offshore Wind One GmbH, submitted the winning bid in an auction that attracted multiple zero-subsidy offers, initiating a dynamic […]

  • TenneT Selects Prysmian Cables for DolWin5

    18 June 2019
    Grid Connection

    Prysmian Group has secured a circa EUR 140 million contract by TenneT to provide cables for the DolWin5 grid connection project in the German North Sea. Prysmian will supply, install and commission an HVDC 320 kV XLPE-insulated submarine and land power cable connection, with a 900MW transmission capacity, and the associated fiber optic cable system, including […]

  • 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 […]

  • BorWin Epsilon Offshore Platform Installed

    19 May 2025
    Fixed-Bottom, Grid Connection, Offshore Platforms, Project Updates

    BorWin epsilon offshore converter platform, part of TenneT’s BorWin5 grid connection that will link EnBW’s He Dreiht offshore wind farm with the German grid on land, has been installed at its designated site in the North Sea. The installation of both the jacket foundation and the topside was carried out by Allseas’ vessel Pioneering Spirit. Earlier […]

  • 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 […]

  • Liebherr to Deliver Crane for DolWin Epsilon

    24 September 2020
    Contracts & Tenders, Grid Connection

    Liebherr-MCCtec Rostock has signed a contract with Aibel for the supply of a cylinder-luffing crane for TenneT’s DolWin Epsilon offshore transformer platform, part of the DolWin5 offshore grid in Germany. The Liebherr crane will be used for supply and maintenance tasks on the 900 MW offshore grid connection in the German part of the North […]

  • 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 […]