The Dutch company’s eponymous offshore concept is mind-boggling in size. More a power station than a machine, the 1.35km-diameter airborne turbine is made up of two vast concentric circular “flocks” of electricity-generating sail-wings designed to rotate thousands of metres up in the sky, sending electricity down hundreds of conductive tethers that double as its mooring spread.
The device is a spin-out from civil engineer Bogey Venlo that is being developed to solve weight and cost issues faced by the wind industry as it attempts to scale turbines beyond the 10-15MW class.
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