The need There are currently two main challenges that are preventing wave power from becoming a mainstream energy source: Reliability and High Cost Of Energy (LCOE – Levelized Cost of Energy). The leading wave power concepts of today have the common problem of 3 to 5 times too high cost of energy to be competitive with established energy sources. Levelised Cost of Energy (LCOE) offered by wave power concepts are so far in the range of 0.30 to 0.50 EUR/kWh,  resulting in questionable return on investments for utility customers looking for renewable energy sources unless significantly subsidised.  The root cause for high LCCorPower buoyOE of current wave power concepts can be summarised in three contributing factors:

  • High Capital Expenditure (CAPEX) cost compared to the rated power output
  • Low capacity factors (average/max power ratio) due to poor performance in varying sea states
  • High Operation & Maintenance cost due to complex off-shore service scheme.

The solution The HiWave devices are small and light with low inertia creating the advantage of being energized by a broad range of waves.  The Wave Energy Converter (WEC) systems include a PTO (Power-Take-Off) having an oscillator with pneumatic pretension and a mechanical drive train with high natural frequency of oscillation. This is combined with phase control algorithms, making the WEC (PTO and primary absorber) oscillate in resonance with incoming waves. WEC technology offers a power density (kW/ton device) that is more than five times higher than existing solutions and an effective service scheme expected to result in a levelised cost of energy below 0.15 EUR/kWh in volume.

 Overall Status:

  • Design & dry testing
  • Web testing to start in mid 2017

Project Coordination and Management:

Patrik Moller patrik.moller@corpowerocean.com

Project Consortium: