Oslo-listed Seaway 7 is likely to add at least $500m to its contract backlog in a second big offshore wind farm ship deal this month.

The Kristian Siem and Arne Blystad-backed shipowner said it has been chosen as exclusive vessel provider for ScottishPower Renewables’ East Anglia THREE project, 70km off the coast of eastern England.

Seaway 7 is finalising a preferred bidder supply chain agreement to transport and install 95 monopile foundations.