MHK Technologies/Ocean Treader floating

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Ocean Treader floating.jpg

Technology Profile
Primary Organization Green Ocean Energy Ltd
Project(s) where this technology is utilized MHK Projects/Development of Ocean Treader
Technology Resource
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Technology Type
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Technology Readiness Level
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TRL 4: Proof of Concept
Technology Description The Ocean Treader is comprised of two sponsons at the fore and aft of the device and a spar buoy in the center. As a wave passes along the device, first the fore sponson lifts and falls, then the spar buoy, and then the aft sponson, respectively. The relative motion between these three floating bodies is harvested by hydraulic cylinders mounted between the tops of the arms and the spar buoy. The cylinders pressurize hydraulic fluid that spins hydraulic motors and an electric generator. The electricity is exported via a cable piggy-backed to the anchor cable. Ocean Treader is designed to passively weather-vane to face the wave direction; and in addition, the device has active onboard adjustment to allow for offset due to the effects of current.

Technology Dimensions
Device Testing
Date Submitted 10/7/2010

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