MHK Technologies/StingRAY (Columbia Power)

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StingRay transparent nacelle-web.jpg

Technology Profile
Primary Organization Columbia Power Technologies, Inc.
Project(s) where this technology is utilized MHK Projects/
Technology Resource
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Technology Type
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Technology Readiness Level
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TRL 5/6: System Integration and Technology Laboratory Demonstration
Technology Description The StingRAY – our utility-scale wave power system – represents the culmination of over 10 years of academic and corporate development. The system is based on a design philosophy that values simplicity, high efficiency and durability. In line with this philosophy, we’ve incorporated a number of unique design choices to help ensure we deliver a competitive cost of energy:

direct-drive means minimal moving parts permanent magnet generators are an efficient and proven way to generate electricity single-point mooring reduces our footprint and costs sub-system modularity to allow for rapid and efficient maintenance and repair composite structure delivers strength and long life, while avoiding corrosion In our product development effort, we emphasize stepped-scale testing. For StingRAY, our third-generation system, we’ve run our models for thousand of hours, tank-tested prototypes four times (including three and five unit arrays), and successfully completed thirteen month sea trials of an intermediate-scale prototype.

We’ve received fourteen patents on our system and currently have sixteen pending applications in the national stage entry process.

Designed to Operate with Shore Connection? Yes
Power Transfer Method Direct-drive-rotary mechanical to electric power train
Water Column Location Surface
Mooring Configuration Single-point anchored

Technology Dimensions
Device Testing
Have Key Components Been Fabricated and Tested in the Lab? Yes

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