The first results of wave energy being harvested from waves. A presentation from the 3rd international Conference on Ocean Energy.
Survivability at sea is a big problem for wave energy devices. But unlike any other wave energy concept, the Wavestar’s sea survivability is guaranteed, and the concept has been proved during many years of continuous operation at sea. It can continue production in strong wind and waves, and automatically raises the floats out of the sea when the conditions becomes too stormy.
This is a milestone in wave energy because the sheer power of the ocean is a great obstacle to wave energy production. The concept, in particular the action of moving the buoys out of the water to lock them in storm-protection mode, is protected by a number of strong patents.
The Wavestar machine’s efficiency is being continually increased. The design was recently modified to reduce the cost by 40 per cent, while energy harvesting capacity and other aspects of the machine are being constantly improved for better efficiency. The Wavestar machine is less visible and quieter than wind turbines, and it also has a positive impact on wildlife below the machine, creating a sanctuary enhanced by the limits on nearby fishing.
The aesthetic profile of the machine won the prestigious Biennale Prize at the Biennial of Crafts and Design in 2009. The machine was nominated for the "highly original and striking sculptural design of a wave power machine, which in one single image symbolizes and clarifies the huge potential of this renewable energy resource ... the wave power machine constitutes a beautiful counterpart to the clear form expression of the modern windmill."