MHK Technologies/CETO Wave Energy Technology

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CETO Wave Energy Technology.png

Technology Profile
Primary Organization Carnegie Wave Energy Limited
Project(s) where this technology is utilized MHK Projects/CETO La Reunion
MHK Projects/CETO3 Garden Island
MHK Projects/Perth Wave Energy Project PWEP
Technology Resource
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Technology Type
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Point Absorber
Technology Readiness Level
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TRL 7/8: Open Water System Testing & Demonstration & Operation
Technology Description The CETO system distinguishes itself from other wave energy devices by operating out of sight and being anchored to the ocean floor. Each CETO unit consists of a pump unit moored to the ocean floor and connected to a submerged Buoyant Actuator via a tether. The Buoyant Actuator moves in an orbital motion, in harmony with the wave, capturing the power of the passing waves. The fluid is then re-circulated at low-pressure to the CETO units offshore creating a closed-loop system. The generation capacity of CETO projects is scalable. To increase the project capacity additional units can be added offshore and connected back to a larger power house onshore.
Power Transfer Method The Buoyant Actuator is connected to a tether (marine rope) that creates a vertical upward force which actuates the seabed mounted piston pump. This force pressurises fluid in the CETO system. The high pressure fluid is then sent ashore via a subsea pipeline. Onshore the fluid passes through a standard hydroelectric turbine to generate zero-emission electricity and/or through a reverse osmosis plant to directly create zero-emission desalinated water (replacing greenhouse gas emitting electrically driven pumps usually required for such plants).
Mooring Configuration Anchored

Technology Dimensions
Device Testing
Date Submitted 5/24/2012

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