The Solution

Waves4Power AB develops and sells wave energy systems. The heart of the system is our proprietary WaveEL buoy – a point absorber – where the energy of the waves are converted into electrical power. A wave power park consists of a large number of WaveEL buoys linked together in an optimized power generation pattern.

The Waves4Power system is based on years of experience and testing of wave power systems and on many years of marine service operations. The heart of the wave power system is a point absorber, the WaveEl 3.0 buoy, where the energy of the waves is converted into electrical power.

WaveEL buoy THE HEART OF THE SYSTEM – a gigantic pump

  • A buoy with a long vertical tube (the acceleration tube) passing through it
  • A water piston inside the tube connected to a power conversion system
  • A mooring system allowing the buoy free vertical movement while securing it on station
  • A dynamic cable connecting the WaveEL buoy to the collection hub and then via sea cable to the shore based power grid

The power generating buoy is a Point Absorber and as such is defined as a device with small horizontal dimensions in relation to the wavelength of the waves from which it is extracting energy. Due to their size, point absorbers are known to survive well in the ocean as they do not fight the waves, but ride them.

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The characteristic feature of the WaveEL 3.0 buoy is the patented long acceleration tube. The tube – which is open in both ends – goes right through the buoy and is extends 30-35 meters below it.

As waves rise and lower the buoy with the attached tube, they will move differently from the water column in the tube. By placing a piston in the tube, connected to a hydraulic conversion system, a gigantic pump is created.

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