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Equinor Wind SemiEquinor has revealed its preferred floating wind foundation design for full-scale gigawatt (GW) commercial floating offshore wind, if successful in ScotWind. The Wind Semi, a semisubmersible wind turbine foundation, has been designed with flexibility, specifically to allow for fabrication and assembly based on local supply chain capabilities.
The Wind Semi has several features making it particularly suited for harsh waters, and solutions that can maximise the opportunities for the Scottish supply chain:
  • Increased dependability: By introducing a passive ballast system, the Wind Semi has a simple substructure design, reducing the risk of system failure and the amount of maintenance needed
  • Simpler, more robust design: A flat plate design that is free from bracings, heave plates and complicated nodes that are prone to fatigue cracking
  • Flexibility towards the supply chain: With a harbour draught of less than 10 m, the Wind Semi’s turbine integration can be assembled at most industrialised ports. The Wind Semi’s simpler flat plate design enables the substructure to be built in blocks that can either be fabricated locally and/or shipped from other locations.
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