FLOW sub-structures are enormous. The size of a football pitch, ten stories high and weighing up to 20,000 tonnes. Built from either steel and concrete or concrete and secondary) steel. sub-structures carry c70% of the cost of the completed unit and c30% of the overall CAPEX.

 The choice of FLOW platform remains unknown but we do know that the UK has vast capability and capacity in concrete and aggregates  (demonstrated in the SW by Hinkley-C). Should FLOW developers pursue a principal of "design-to-local" for a shorter and more resilient supply chain - the boost to UK's jobs and GVA would be immense.