The UK energy regulator Ofgem has unveiled its shortlist of bidders under the Offshore Transmission Owner (OFTO) Tender Round 13, in which five companies and consortia will compete to own and operate the offshore electricity transmission links for the East Anglia Three, Inch Cape and Dogger Bank C o
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 U
Bilfinger has been selected to provide supervision services for the Bałtyk 2 and Bałtyk 3 offshore wind farms in the Polish Baltic Sea, developed by Equinor and Polenergia. The company’s scope covers supervision of the installation of offshore substations, wind turbines and more than 120 kilometres
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 award
The UK government will remove tariffs on a range of industrial goods used in offshore wind manufacturing in a move aimed at reducing costs for the sector and supporting the country’s targets. According to the Department for Business and Trade, tariffs on 33 industrial goods used in offshore wind wil
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 un
Offshore construction has begun on the Bałtyk 2 and Bałtyk 3 offshore wind projects in Poland, developed by Equinor and Polenergia, which will together have 100 wind turbines and an installed capacity of 1.4 GW. The 2026 offshore construction campaign will see the installation of 100 monopiles, tran
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 wei
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 ship
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 sel
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 thre
Smulders has contracted KCI Offshore Engineering, a subsidiary of Sif Group, for the design of the jacket foundation that will support the offshore substation (OSS) for the 600 MW Dunkerque offshore wind farm in France. Under the contract, KCI will perform the basic and detailed design, including fa
The HSI Joint Venture, comprising HSM Offshore Energy, Smulders, and Iv, has rolled out the topside of the second offshore substation (OSS) for the German offshore wind farm Gennaker at HSM Offshore Energy’s yard in Schiedam, the Netherlands. The joint venture will now work toward the upcoming load-
The consortium between Semco Maritime and PTSC Mechanical & Construction has cut the first steel for the Formosa 4 offshore substation (OSS) at PTSC M&C’s fabrication yard in Vung Tau, Vietnam. Under a contract awarded in late August 2025, the consortium is responsible for the design, procurement, c
Skyborn Renewables and the German transmission system operator (TSO) 50Hertz, which is leading the development of the grid connection (OST-6-1) for the 976.5 MW Gennaker offshore wind farm, have signed an agreement that clears the way for the commissioning of the entire system by mid‑2028. The contr
