How is CCell Different?

CCell's curved, asymmetric, shape delivers a step-change in performance in three ways:
CCell with large wave


CCell's inner face channels the wave energy towards a strong central core. This amplifies the wave-crest height and wave-trough depth, increasing the pressure differential across the paddle and the power output.

CCell with feather


CCell's curved paddle structure is naturally strong (just like an egg), with the paddle theoretically requiring 90% less material to achieve the same strength of a flat design.

CCell with Streamlines


The flow both inside and around CCell is smooth with virtually no turbulent losses. Water passing around the outer edge generates additional lift (just like an aerofoil) further increasing the device efficiency.


CCell collects energy by harvesting power from the open sea. Flexible curved guides focus the incoming waves towards a strong central core, which drives hydraulic pistons that extract the power.

The curved shape also creates beneficial pressures on the shore face of the paddle, dramatically increasing the net forces across the paddle, both within wave crests and troughs. Much like the wing of a plane, this effect dynamically increases the catchment width of CCell, leading to an estimate effective width of over 120%.


A curved structure is naturally stiffer than the flat equivalent for the same width. By curving a flat paddle, 90% less material is required to achieve the same overall stiffness, or alternatively peak stresses are reduced by 80% using the same plate thickness.

Through variations in plate thickness, CCell is designed to be flexible in the guides of the unit and strong in the centre. This further reduces the overall mass while improving the life of the paddle through reduced fatigue.

For first of kind prototypes using aluminum and steel are easily modified during manufacture and testing. Future research will integrate composite materials to reduce weight, simplify manufacturing, and improve performance through the use of double curvature surfaces.


A distinguishing feature of CCell is the smooth transition of energy from the waves to the paddle, which not only maximized energy capture but reduces energy dissipation.

For most wave energy concepts, significant losses arise from:

  • turbulence - around the tips of the wave energy device
  • slamming - that arises along steep boundaries where speed of the water movement and the wave paddle differ greatly
  • wave dispersion - which is an inevitable consequence of the paddles motion in water.

CCells address all three of these losses, and through careful optimisation is seeking to eliminate turbulence and slamming losses, while significantly reducing dispersion.


CFD simulation of CCell in large waves.

Driven by Innovation

We are obsessed with understanding the physical interaction between waves and CCell. We don't assume, we don't copy, instead we work tirelessly to challenge every perception, validate every assumption and strive to make everything as simple as possible without compromise.

In three years we have:

  • evolved CCell from a simple sketch to full scale prototypes that have been deployed offshore
  • been granted a UK patent with global patents pending
  • built a strong team of leading academics and industrial partners
  • completed three sessions of laboratory tests in UCL and Plymouth wave tank facilities
  • developed a dynamic control system and supplied electricity to the national grid - even during laboratory tests
  • developed a suite of advanced numerical tools, combing the best fluid and structural models with our own in-house expertise
  • established an approved nearshore site in Maryport for component and system sea trials

And we're just getting started !

CCell in Action

Our journey so far

Follow our Adventure