InterMoor Completes Comprehensive Studies for UK Floating Windfarm Development

InterMoor, a leading provider of mooring services and a brand in Acteon’s Moorings and Anchors Business Line, has announced the successful completion of multiple study packages for the planning, installation, operations, and maintenance of a commercial-scale floating windfarm in the United Kingdom. The windfarm, with a capacity of up to 1GW and water depths ranging from 85 m to 150 m, represents a significant advancement in renewable energy.

The completed studies include:

  1. Mooring System Costs and Installation Comparison Study:
    • Evaluated equipment procurement, vessel requirements, installation methodology, and installation costs for 25 Floating Offshore Wind Turbine (FOWT) units.
    • Assessed drag anchor feasibility for six mooring configurations, including catenary and semi-taut systems.
    • Developed method statements for pre-installation of anchors, anchor test tension, polyester pre-stretching, and FOWT hook-up options.
  2. Mooring Repair and Sparing Philosophy Study:
    • Analyzed repair strategies and sparing philosophy for six FOWT mooring systems covering hybrid catenary, semi-taut, and taut configurations.
    • Reviewed historical data to identify probable mooring component failure modes.
    • Developed sparing philosophy for each mooring system component.
  3. Port Facilities Study: FOWT Mooring Storage and Mobilization:
    • Assessed storage, handling, and mobilization methodology for each mooring component.
    • Developed delivery and installation schedules and prepared indicative operational costs to meet annual demand for up to 20 FOWT units per year.
    • Developed port facility specifications for various mooring configuration scenarios.
    • Evaluated local port facilities against specified requirements.
  4. Anchor Feasibility Study:
    • A feasibility study in relation to the selection, fabrication, and installation of anchor solutions for a UK-based floating offshore wind farm with anchor loads in the range of 1,000 t to 2,000 t
  5. FOWT Temporary Mooring Study:
    • Proposed technical solutions and cost estimates, considering preliminary temporary mooring design, indicative anchor design, installation/hook-up methodology, and estimated costs for temporary mooring of FOWT foundations.


These studies position InterMoor at the forefront of floating offshore wind development, driving innovation and efficiency for our customers.

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