MHK Technologies/Tidal Lagoons

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Tidal Lagoons.jpg

Technology Profile
Primary Organization Tidal Electric
Project(s) where this technology is utilized MHK Projects/Dandong City
MHK Projects/Swansea Bay
Technology Resource
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Technology Type
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Cross Flow Turbine
Technology Readiness Level
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TRL 1-3: Discovery / Concept Definition / Early Stage Development & Design & Engineering
Technology Description idal Lagoons are situated a mile or more offshore in high tidal range areas, and use a rubble mound impoundment structure and low-head hydroelectric bulb turbines. Shallow tidal flats provide the most economical sites. Multi-cell Tidal Lagoons provide higher load factors (about 62%) and have the flexibility to shape the output curve in order to dispatch power in response to demand price signals. The impoundment structure is a conventional rubble mound breakwater (loose rock, concrete, and marine sheetpiles are among the types of appropriate materials for the impoundment structure), with ordinary performance specifications and is built from the most economical materials. The barrage is much shorter than an impoundment structure with the same output capacity, but the barrage is a much larger structure. The offshore tidal generator uses conventional low-head hydroelectric generation equipment and control systems. The equipment consists of a mixed-flow reversible bulb turbine, a generator, and the control system. Manufacturers/suppliers include Alstom, GE, Kvaerner, Siemens, Voith, Sulzer, and others.

Technology Dimensions
Device Testing
Date Submitted 10/8/2010

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