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PRIMRE/Databases/Projects Database/Devices/BioPower Systems bioSTREAM
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BioPower Systems bioSTREAM
The bioSTREAM is a unique system for extracting energy from tidal currents, and converting this energy into grid-quality electricity. Based on the concept of an oscillating hydrofoil, the bioSTREAM borrows traits from advanced marine species to optimise efficiency. This application of biomimicry results in a slow moving multi-directional system, which does not have the inherent drawbacks and anticipated environmental impacts of more traditional rotary turbines. bioSTREAM is protected by patents in all potential markets worldwide. The bioSTREAM is designed to extract energy from the tidal currents. The patented lunate-shaped fin of the bioSTREAM is actuated in a controlled manner to continuously maintain an angle-of-attack corresponding to peak lift force. The lift force drives rotary motion of the tail structure about a fixed foundation. Hydraulic cylinders contained in the tail deliver high-pressure fluid to an O-Drive, where the energy in the fluid is converted to electricity.
Additional Information
Device Status
Is the device actively being developed or is available for purchase (active)? Or has development or support ended (inactive)?
Inactive
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
Hydraulic Generator
Surface ExpressionFalse
Estimated TRL
Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology
TRL Last updated: 1 November 2006
4
Energy Resource
- Ocean Current
Water Column Position
Surface
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Submerged - Mid
Entire Water Column
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Submerged - Bottom
Last Modified
10 June 2025
Citation Formats
“BioPower Systems bioSTREAM.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/BioPower_Systems_bioSTREAM. Accessed <day> <monthRoman> <year>.
Marine Energy Projects Database: Devices. <year>. "BioPower Systems bioSTREAM." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/BioPower_Systems_bioSTREAM.
