Crestwing Development Vision Status Home Company Contact
Crestwing Development Vision Status Home Company Contact
The Crestwing Wave Energy Converter
The Crestwing Wave Energy Converter (WEC) works on the surface of the ocean and consists of two connected floating pontoons anchored at the sea bottom.
The connected pontoons swing around the hinge when the top of the waves passes under the floats. The pontoons relative motion is converted into usable energy through a linear PTO system.
The pontoons are pushed upwards from the below passing wave and again dragged down by the same passing wave. Complex hydrodynamic conditions occur under the pontoons when the wave formation pushes the unit up and down simultaneously.
The energy from waves can be divided into fifty percent potential energy and fifty percent kinetic energy. Crestwing absorbs both the potential energy as the kinetic energy which is the back ground for the high efficiency.
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A full scale Crestwing in The North Sea will be approximately 80 m long and about 20m width, each machine with a rate of about 1 MW. The energy produced by Crestwing depends on the conditions of the specific site. In the North Sea each machine will, on average, produce more than 1 GWh per year.
In the Atlantic, based on a simple up-scale, each machine provides sufficient power to cover the annual electricity consumption of about 600 households with an electricity consumption of 5000 kWh per year.