Stingray Uses an oscillating aerofoil to extract energy from

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Presentation transcript:

Stingray Uses an oscillating aerofoil to extract energy from marine currents. Hydraulic power take-off system Artist’s impression of a “farm” of Stingray devices

Stingray trial deployment in Yell Sound, Shetland, September 2002. Device produced 90 kW output in 1.5 m/s current speed

Prototype 300 kW marine current turbine near Lynmouth, Devon. 2 blades, rotor diameter 11 m Project managed by UK company, Marine Current Turbines Ltd. No yaw mechanism and no electrical connection to shore

Marine Current Turbines Artist’s sketch of a 3-bladed turbine on a monopile tower

Artist’s sketch of a twin 2-bladed installation. Rotors would contra-rotate to minimise the reaction torque on the structure

Marine current turbine by Strom AS, Norway Rated at 300 kW, rotor diameter 20 m Deployment in fjord near Hammerfest early 2003. Turbine has a tripod supporting framework with gravity ballast

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