Key Advantages


High Efficiency:

  • Good capture ratio in varying wave sizes thanks to unlimited length of stroke given by the mooring drum. The mooring drum is rotated by the mooring line when the wave is rising, driving the power takeoff and generator.
     
  • Exceptionally high utilization of the system thanks to the power smoothing capabilities that makes it possible to capture the peak energy without oversizing the system. Approx. 65% utilization (Capacity Factor) is estimated for installation sites with good wave conditions.

Low investment Cost:

  • The maximum forces in the system are limited by the weight of the counterweight, which in turn reduces the cost of components.
     
  • The wave motions are very slow and powerful. The power takeoff creates a unidirectional high speed rotation that drives a standard light weight generator.

Survivability, Durability:

  • Transmission and generator are well encapsulated and protected in a transmission casing.
     
  • When the average captured wave energy reaches the maximum capacity of the wave energy converter, the energy capture is limited to only capture enough energy to maintain full power output. Therefore the Ocean Harvester doesn’t have to be disengaged in storm conditions as most other technologies.  

Operation & Maintenance:

  • The Ocean Harvester is a modular system. The transmission casing contains the main wear parts and can be replaced for service ashore to minimize work on site.
Publicerad 28/05, 16:13

The Ocean Harvester


An Ocean Harvester designed for 100 kW in a medium-strong wave climate will be approx. 14 meter long, 5 meters wide and 2 meters high.

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Dimensioning

Buoy: 15 ton
Counter weight: 10 ton

Annual production: Up to 600 MWh (40 electricity heated households)

How it works 

The environmental web magazine WorldChanging.com published in December 2008 an artist’s impression of the Ocean Harvester, which explains the basic technology in a very simplified but intuitive way.

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Publicerad 09/10, 11:53