Ørsted has awarded Seaway7, part of the Subsea7 Group, a contract for the transport and installation (T&I) of the inter-array cables at the Hornsea 3 offshore wind project in the UK.
Seaway7’s scope of work covers the transportation and installation of 192 66 kV inter-array cables, measuring approximately 500 kilometres in length, with offshore activities scheduled to commence in 2026.
“With this award we look forward to continuing our long-standing relationship with Ørsted. The Hornsea 3 project represents our seventh offshore wind project together, including the inter-array cables on the two previous phases of the Hornsea Wind Zone, Hornsea 1 and Hornsea 2. The award adds to our backlog and leading position in the UK, Europe’s largest offshore wind market”, said Stuart Fitzgerald , CEO of Seaway7.
Financial details have not been disclosed, but Subsea7 classifies a substantial deal like this within a range of USD 150 million to USD 300 million.
Ørsted made the final investment decision for the 2.9 GW Hornsea 3 offshore wind farm, located approximately 160 kilometres off the Yorkshire coast, in December last year.
Hellenic Cables and Prysmian Group signed a contract with the developer for the inter-array cables, while the export cables will be supplied by NKT.
Balmoral Comtec is responsible for the supply of cable protection systems for Ørsted’s UK project.
With 231 wind turbines and a generation capacity of 2.9 GW, the Hornsea 3 offshore wind farm is expected to be completed by the end of 2027.