CCell has the highest known power to weight ratio of any wave energy device.
This power arises from the flexible curved guides of CCell that focus the incoming waves towards a strong central core, driving the paddle forward and backward. Similarly, CCell’s convex shoreward face cuts smoothly through the water, reducing energy dissipation from this face. This motion is consequently converted into electrical power or used to pump a fluid.
The curved shape creates beneficial hydrodynamic lift, much like the wing of a plane, dramatically increasing the net force across the paddle. Together with the curved guides, the capture width ratio of the device is significantly improved. In trials effective width ratios in excess of 130% have been measured.
A distinguishing feature of CCell is the smooth transition of energy from the waves to the paddle, which reduces turbulent losses and eliminates slamming loads. The device also has remarkable survivability in extreme waves, with excess energy smoothly channelled over the device.
Ocean waves propagate to shore and are collected by CCell, with an interaction width twice the device width.
Energy within the incoming waves is guided towards a strong central core of the CCell paddle.
Yield Stresses (N/m2)
Material Yield Strength = 290M Pa
A curved structure is naturally stiffer than the flat equivalent for the same width, with 90% less material required to achieve the same overall stiffness.
The device is predominantly made using glass and carbon fibre materials, which enables further weight reductions in the overall system. These materials offer the added benefit of corrosion resistance, as well as simplifying manufacturing, transportation and installation.
Through variations in the laminate layup, CCell is designed with flexibility in its guides, while maintaining a strong central core, by adding thickness only where it's needed. In addition to reducing weight, this feature helps improve CCell’s design life through optimal distribution of stresses thereby reducing fatigue.
The sea is a complex environment. Consequently, it is essential that CCell works reliably, with a minimum number of required interventions. Also of critical importance is the health and safety surrounding maintenance procedures. We have therefore, focused our efforts on making CCell as simple as possible, working closely with manufacturers and marine contractors from the early development stage. CCell has only one moving part with all of its power-take-off equipment integrated into the bottom shaft of the paddle.
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