TetraSpar Demonstrator (2021)

  • Concession holder:
    Marin Energi Testsenter (METCentre)
  • Owner:
    Stiesdal / Shell / RWE / TEPCO
  • Type of foundation:
    Floating, TetraSpar
  • Installed capacity:
    3,6 MW
  • Technology:
    Wind Turbine, Siemens-Gamesa
  • Mooring:
    Drag chain achor
  • Status:
    Planned start

Bringing floating wind to the next level the TetstraSpar Demonstrator will be starting the test period for the TetraSpar in the summer of 2021 at MET. Its modular layout consists of a tubular steel main structure with a suspended keel. It is expected to offer important competitive advantages over existing floating wind concepts, with the potential for leaner manufacturing, assembly and installation processes with lower material costs. The project has a budget of €18 million.

The components for the large floating prototype was manufactured by Welcon A/S in Give, Denmark, before being transported to the Port of Grenaa to be assembled. Following launch of the foundation, the wind turbine will be mounted on the foundation at the quayside using a land-based crane. From there, the foundation structure including the turbine will be towed to the test site in the northern part of the North Sea, moored to the seabed with three anchor lines and connected to the electrical grid.