MHK Technologies/Scotrenewables Tidal Turbine SRTT

From Open Energy Information

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Scotrenewables Tidal Turbine SRTT.jpg

Technology Profile
Primary Organization Scotrenewables
Project(s) where this technology is utilized MHK Projects/Scotrenewables EMEC
Technology Resource
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Technology Type
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Axial Flow Turbine
Technology Readiness Level
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TRL 4: Proof of Concept
Technology Description The Scotrenewables Tidal Turbine (SRTT) system is a free-floating rotor-based tidal current energy converter. The concept in its present configuration involves dual counter-rotating horizontal axis rotors driving generators within sub-surface nacelles, each suspended from separate keel and rotor arm sections attached to a single surface-piercing cylindrical buoyancy tube. The device is anchored to the seabed via a yoke arrangement. A separate flexible power and control umbilical line connects the device to a subsea junction box. The rotor arm sections are hinged to allow each two-bladed rotor to be retracted so as to be parallel with the longitudinal axis of the buoyancy tube, giving the system a transport draught of less than 4.5m at full-scale to facilitate towing the device into harbors for maintenance.

Technology Dimensions
Device Testing
Date Submitted 10/8/2010

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