Floater design details and infrastructure requirements to enable Industrialized serial-fabrication at US West Coast

Denis Matha, Head of Floating Wind, Ramboll
California is at the center of the US floating offshore wind industry with offshore wind leases expected in 2022 and recently enacted states policy supporting offshore wind. The future floating wind supply chain that will be built in California and adjacent states will require different port types and manufacturing requirements compared to existing fixed bottom supply chains, however this will depend significantly on the floater concepts to be built. The presentation will discuss how floating substructure design aspects influence requirements for infrastructure and supply chain on the US West Coast and how different design details impact the possibilities to industrialize their fabrication and assembly. Design aspects to be discussed in this context include the choice of material (steel and concrete), size of the WTG, the structural layout and modularity of different floater archetypes, as well as overall floater dimensions, masses and other relevant aspects such as draft in different assembly phases. All these design aspects will influence the supply chain, ports and area requirements and ultimately impact the extent of local content as well as required investments in upgrading existing infrastructure. California’s history includes prolific ship building and understanding the floater design aspects which influence the possibility to tap some of the remaining capacity will play a key role in allowing for fabrication and assembly of floating wind turbines in California.