MHK Technologies/bioSTREAM

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Technology Profile
Primary Organization BioPower Systems Pty Ltd
Project(s) where this technology is utilized MHK Projects/bioSTREAM Pilot Plant
Technology Resource
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Technology Type
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Reciprocating Device
Technology Readiness Level
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TRL 5/6: System Integration and Technology Laboratory Demonstration
Technology Description The bioSTREAM is an oscillating hydrofoil based on the highly efficient propulsion of Thunniform-mode swimming species, such as shark, tuna, and mackerel. The bioSTREAM mimics the shape and motion characteristics of these species, but is a fixed device in a moving stream. In this configuration the propulsion mechanism is reversed, and the energy in the passing flow is used to drive the device motion against the resisting torque of an electrical generator. Due to the single point of rotation, this device can align with the flow in any direction and can assume a streamlined configuration to avoid excess loading in extreme conditions. Systems are being developed for 250 kW, 500 kW, and 1 MW capacities to match conditions in various locations.

Mooring Configuration Gravity Base
Optimum Marine/Riverline Conditions 30 to 50M depth 2 5m s peak velocity or greater

Technology Dimensions
Freeboard (m) 0

Technology Nameplate Capacity (MW) 250kW pilot 1MW commercial scale
Device Testing
Scale Test •Extensive testing has been completed at the Australian Maritime College and the University of Sydney
Lab Test •A full scale commercial 250kW power take off unit O Drive has been designed and built The unit is currently being tested at Biopower s factory facility in Sydney The unit is grid connected and feeding clean power into the national grid

Date Submitted 3/21/2011

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