Aker Solutions and Siemens Energy will be responsible for providing the grid connection infrastructure for the 1.4GW offshore project.
The contract scope includes engineering, procurement, construction and installation (EPCI) works for the high-voltage direct current (HVDC) offshore platform, as well as an onshore substation and connection to the UK’s National Grid.
Aker Solutions Offshore Wind senior vice-president Kenneth Simonsen said: “The development of the Norfolk Offshore Wind Zone could require up to three HVDC platforms in succession, which would provide more long-term predictability and positive repeat effects and standardisation for the supplier industry.
“Together with Siemens Energy, we are proud to support a project which meets the dual objective of developing local content while delivering low-cost, green electricity to homes and businesses across the UK.”
Located more than 47km from the Norfolk coast, Norfolk Boreas is the first phase of Vattenfall’s Norfolk Offshore Wind Zone.
Upon completion, the offshore area will generate enough clean energy to power more than four million homes and displace around six million tonnes of carbon emissions.
The project is subject to regulatory approvals and a final investment decision (FID) for the project is expected in the second quarter of next year.
Aker Solutions estimates that following the FID, the project’s contract value for the company could range from Nkr2.5bn ($231m) to Nkr3.5bn ($323m).
The implementation would impact around 2,900 jobs at the company and its effects would be felt more across its European operations.