3d visuelisering av floating windpark av Flexifloat

Floating storage of wind, wave and sun energy producers

We customize and optimize floating foundation of wind turbines, wave energy transformers and solar panels in marine areas.

Floating windpark

FlexiFloat Substructure overall dimensions:

  • 306 x 306 x 50m (30m above sea level)

  • Substructure weight: 18 000 tons

  • Water depths: 30 – 800m

  • Mooring: 8 anchor and mooring lines

Prototype wind, wave and sun energy installation

  • 32 MW installed wind turbine capacity
  • 19 MW installed wave energy capacity
  • 1 MW installed sun energy capacity


  • Complete installation close to fabrication yard inshore.
  • Low cost on production, towing, installation, operation and maintenance (Low LCoE)
  • Excellent stability in High Waves and Heavy Wind.
  • Extended height above sea and stability improve turbine, wave energy transformers and solar panel efficiency and lifetime
  • Area-efficient installation
  • Option to install helideck and transformation module on substructure.
  • Feasibility for extension of windfarm.
  • Years of development 2016 -2021
    Years of production and demonstration 2022 -2025
    Years of operation 25
    Number of wind turbines 8 (4 twin-rotor)
    Number of wave energy generator modules 8
    Number of solar panel foundations 8
    Total installed capacity 52 MW
    Production 25year x 8760hrs/year x 52MW x *0.49 5,58 millions MWh
    CAPEX (inshore) **115 millions EUR/ 5,58 millions MWh 20,6 EUR/MWh
    CAPEX (offshore)***35 millions EUR/ 5,58 millions MWh 6,3 EUR/MWh
    OPEX (O&M) ****55 millions EUR/ 5,58 millions MWh 9,9 EUR/MWh
    Contingency 20% 7,4 EUR/MW
    LCoE(LevelisedCost of Energy, incl 20% contingency) 44,2 EUR/MWh

*49% load factor (4292 annual hours of maximum load) **complete inshore installation ready for sail away. ***towing offshore, mooring, grid and commissioning. ****operation and maintainance in 25years lifetime.


Our construction

Flexifloat is a slim, modularised and elastic floating platform for combined wind, wave and sun energy production. A unique concept with remarkable low construction and service cost.