Is this a preview of the PTO?, page-10

CCE is one of a number wave technology companies that are collaborating on various aspects of r & d through Wave Energy Scotland.

One of the aims of the programme is to develop technologies that are common across the industry.

"Extensive testing and benchmarking with alternative control methods conducted within the HiWave project shows that the annual average power output of a point abosrber can be increased by more than 300% using WaveSpring. The Annual Energy Production per PTO force is also increased by approximately 300%. The results represent a breakthrough for wave power. The step-change improvement in performance is provided by a low-cost spring arrangement using proven components adding a minimum of cost and complexity compared to the same system without phase control. Moreover, WaveSpring provides the critical function for detuning the device in storms – making it move out of phase with the waves, thereby making it more transparent to large energy flux. The detuning feature has been shown to significantly reduce the loading of the equipment during the test campaign."

http://www.corpowerocean.com/corpower-technology/wave-spring-technology/