The floating vertical contra-rotating turbines have less impact on wildlife, as the turbine is perceived as a natural obstacle.
The World Wide Wind created vertical axis turbines, with low speed of the rotor blade’s wing tip, preventing birds strikes.
One integrated design for floating offshore wind
Two counter-rotating turbines (blades/turbine, shaft and mast, generator)
Tilted with the wind (similar to sail boats)
Simple design; no nacelle, gear, cooling, yaw
Generator as part of floater and ballast
Scalable up to 40MW and 400m height
Reduced wake effect and increased turbine density
source World Wide Wind