Our products are floating wind turbine system made of full wind turbine and floating structure. Our technology was initially designed by the NASA and is inspired by the helicopter technology. Our prototype cost, without mass production impact on cost, beats the current market because our technology is simpler than the conventional 3-bladed technology.
SDG’s of application
Offers from Seawind Ocean Technology Holding B.V.
Offshore floating wind turbine system
The offshore floating wind turbine system is made of the wind turbine and its floating foundation.
This turbine system is designed not only for offshore floating but also for cyclonic regions. This is a major differentiator compared to the conventional 3-bladed technology. In parking mode, the blades are positioned horizontally with the tip in the wind. The turbine can resist winds up to 325km/h (Hurricane 5) and waves of 20 meters while keeping mechanical fatigue levels in the nacelle that are similar than in normal operation mode. This is possible thanks the teetering hinge and having only 2 blades. The technology is proven at 1.5 MW scale with a project called Gamma 60 in Sardinia. Today the Seawind 6-126 (6.2 MW with rotor diameter of 126 meter) and the Seawind 12-225 (12.2 MW with rotor diameter of 225 meter) have got the Technology Qualification from DNV GL. The Seawind 6 detailed design is ready. This turbine needs to enter the Design Certification phase which includes mockup tests. After the design certification, a prototype will be organised which will require to run for a full calendar year. After pre-commercial and commercial projects can start. The Seawind 12 will follow the developments steps of Seawind 6 by approximatively 1 year. LCOEs are €60/MWh and €25/MWh for respectively Seawind 6 and Seawind 12 where the concrete foundation is good for 50+ years while the turbine part is introduced in the economics with a life time of 25 years.