The Netherland-based Sif Group has won its largest contract ever for offshore wind foundations, raising the prospect of supply chain bottlenecks in Europe’s booming offshore wind sector.

Sif Netherlands, in a consortium with Smulders Projects Belgium, will manufacture all 190 monopiles and transition pieces for the Dogger bank A and B projects off the UK in the North Sea that have a combined capacity of 2.4GW.