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PRIMRE/Databases/Projects Database/Devices/Deep Green Tidal Kite
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Deep Green Tidal Kite
Deep Green is an underwater kite that is marketed for low-speed currents, but is rated for water velocities of 1.2-2.4 m/s. The device resembles an airplane with a 12 m long wing supporting a nacelle and 1.5 m diameter horizontal axis turbine beneath. The kite requires mooring to the seafloor using an 80-120 m tether, making is best suited for water depths of 60-120m. The dry weight of the device is approximately 10 tons. During operation, an underwater current creates a hydrodynamic lift force on the wings which pushes the kite upwards. The kite is steered in an figure-eight shaped trajectory by a rudder and reaches a speed several times the actual stream speed. As the kite flies in the current, water flows through the turbine and electricity is produced in the rotary generator. The electricity is transmitted to shore through a cable in the tether attached to the wing.
Additional Information
Device Status
Is the device actively being developed or is available for purchase (active)? Or has development or support ended (inactive)?
Active
Technology Type
Power Take-Off
Mechanism that converts the motion of the prime mover into a useful form of energy such as electricity, learn more
Direct Drive Generator
Max Rated Power Capacity
The maximum amount of electricity that can be produced by the device, as rated by the manufacturer.
500 KW
Surface ExpressionFalse
Estimated TRL
Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology
TRL Last updated: 21 April 2022
7
Energy Resource
- Tidal
Water Column Position
Surface
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Submerged - Mid
Entire Water Column
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Submerged - Bottom
Last Modified
10 October 2024
Projects Using Deep Green Tidal Kite
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Citation Formats
“Deep Green Tidal Kite.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Deep_Green_Tidal_Kite. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "Deep Green Tidal Kite." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/Deep_Green_Tidal_Kite.
