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.

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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^[1] and Prysmian Group^[2] signed a contract with the developer for the inter-array cables, while the export cables will be supplied^[3] 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.

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