This Recommended Practice (RP) outlines how to meet the technical requirements for the certification of floating offshore wind turbine (FOWT) support structures and dynamic cables according to IECRE-OD-502 and IEC 61400-22, supported by IEC 61400-3-2 and other International Codes and Standards such as ISO 19900 to ISO 19906.

The assets covered within the scope of this RP include the integrated floating wind turbines (i.e. floating substructure, tower with associated Rotor-Nacelle Assembly [RNA], and loads) and station-keeping systems (including mooring lines and anchors). The dynamic portion of cables is also considered, given the relationship with floating turbine motions.

Sections include:

  1. Introduction
  2. Design requirements
  3. Design considerations
  4. External conditions
  5. Integrated loads analysis evaluation and load effects
  6. Structure design requirements for floater types  
  7. Floating stability 
  8. Station-keeping system design 
  9. Materials
  10. Corrosion protection 
  11. Tower
  12. Dynamic cable design
  13. Manufacturing
  14. Transport and installation
  15. Commissioning
  16. Operation and maintenance
  17. End of design life
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