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XCF

  • XCF in a few words
    1
  • About XCF
    2
  • Criteria of initial design
    3
  • Staying simple
    4
  • Technical and human security
    5
  • Monitoring philosophy
    6
  • Compatible with differents sites
    7
  • Compatible with different turbines
    8
  • Modular construction
    9

  • XCF in a few words

    illustration construction modulaire

    A floater compatible with any horizontal axis turbine.

    Designed for turbines up to 15+ MW,

    The technology is simple with known principles, reducting the risk of breakdowns,

    A modular solution in concrete to be built in series,

    A design to maximizing local content and community benefits,

    A design with security in mind: for the floater, persons and production,

    Respectful of the environment.

  • About XCF

    HDY

    Henry Dupouy, CEO :

    « We designed XCF using technologies that have proven their worth in the industry.

    By using regular grade concrete and with our simple modular structure, we wanted to create a universally available and manufacturable solution.

    We strived to conceive the most financially viable and technologically reliable floater on the market. »

  • Criteria of initial design

    ConcernConstructionInstallationM&OpCriterionSolution
    Fatigue     X 25 years Concrete structure
    Dynamics     X Large period X-shape 
    Stability   X X Tilt < 10° Wind turbine at center 
    4 floaters
    Size X X   Optimum (< 60m)  
    Ballasting   X X Robust Static ballast
    Draft X X   Harbours Draft of 8 to 9m
    Flexibility X     Simple technology
    Worlwide
    up to 15 MW    		 Limited Prestressing
    Mooring   X X   Catenary mooring

  • Staying simple

    illustration conception simple

    The main functions of the floater are handled by elements that are independent of each others.

    Draft at harbour

    Central floater size 

    Dynamic behaviour

    • Length of pontoons
    • External column mass

    Horizontal shift

    Mooring lines

  • Technical and human security

    Being one of the key components of XCF, security was taken into account from the conception, we especially looked at security. It takes into account the floater, the worker and the continuity of production to ensure the best service.

    Floater security

    • Redundancy,
    • Double hull effect on pontoons,
    • High tolerance to overloads,
    • Several boat landings,
    • Only proven solutions,
    • Shape resistance.

    Workers' health & safety

    • Internal circulation,
    • Possible ballast modification,

    Increase stability,

    Maintenance in progress,

    • Access to the tower from the inside.

    Production security 

    • Maintenance through complete and continuous monitoring,
    • Weather forecasting,
    • Fatigue assessment for each component,
    • Repowering available,
    • Turbine control system connected to the floater expert system.
     

    illustration sécurité

  • Monitoring philosophy

    In order to have a better return on investment, the optimization principles of the maintenance and safety have been linked to one another from the start to be developed together.

    Monitoring

    • Floater tilting,
    • Control panel at dock,
    • Expert system,

    Weather prediction.

    • Lidar connected,
    • Farm production optimisation,
    • Reduce load on turbine,
    • Repowering possibility,
    • Continuous fatigue assessment.

    illustration dispositif de surveillance

  • Compatible with differents sites

    XCF est compatible avec une vaste gamme de conditions maritimes et météorologiques.XCF is compatible with a wide range of marine and weather conditions.

    Cyclonic and multi directional wind sites

    • Two axes of symetry,
    • Turbine at the center.

    High current speed

    Curved shapes.

    Seismic areas

    Low tension mooring lines.

    Wave height

    • Green water : Height of columns,
    • Slamming : Operating draft.

    Soil liquefaction 

    Catenary line, with no interactions in between the soil and the lines.

    illustration compatibilité sites

  • Compatible with different turbines

    The simple design of the floater makes it possible to take into account the different idiosyncrasies/specificities of the turbines.

    Tower size

    • Transition piece's diameter can be modified,
    • Different connection possibilities.

    Differents weights

    • Modification of central floater size,
    • Modification of ballast possibilities,

    Connection

    • Flange placed above the splash zone,
    • Bolts, prestressing or Axinbase available.

    Key parameters of the turbine.

    • Frequencies :
      • Lenght of pontoons,
      • Column masses.
    • Tilt :
      • Lenght of pontoons,
      • Size of columns
    • Thrust : simple design.

  • Modular construction

    illustration construction modulaire

    Mass production possible thanks to its modular design.

    Designed from the start for high power turbines, up to 15+ MW,

    Compact dimensions,

    • Fewer port requirements.

    Modular design in concrete,

    • Reduced costs,
    • Quayside construction eased.

    Standard connections,

    No pre-stressing required,

    Moderate concrete quality,

    Low reinforcement ratios.