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This programme covers research and development services for structural materials and manufacturing processes, specifically focused on the construction of the WEC structure and prime mover.

The challenge is to fully investigate the attractiveness of promising alternative materials and associated manufacturing processes for application to the structure and prime mover of WECs.

Projects in this programme started at Stage 1 in 2017.

The CREATE project aims to confirm that the use of concrete technology can make a step change in LCoE in the wave energy sector, taking a broad approach to identify where structural concrete could have most impact, before developing a suitable design solution in detail.

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The RotoHybrid project aims to develop the materials and processing technology necessary to enable the versatile, lightweight polymer manufacturing process of rotational moulding to be employed in the design of novel wave energy converters.

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This targeted project assessed the potential application of new and existing rotational moulding technologies including hybrid rotationally moulded structures with concrete ballast material and innovative new design concepts for accepting point loads and preventing buckling.

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There is potential to reduce the cost of wave energy through use of deformable fabric/elastomeric structures for wave energy conversion. Deformable bodies can have several advantages over their conventional rigid counterparts.

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CorPower, Balmoral and Wave Venture combined their efforts to assess the viability of hybrid Fibre Reinforced Polymer (FRP) applied to the specific case of a prime mover of point absorber Wave Energy Converters (WEC).

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The project encompassed two areas TTI sees as being key to the path towards cost competitive wave energy – impermeable fabrics to provide compliant and thus load shedding/peak load resistant buoyant modules and fibre rope ‘load nets’ to encapsulate the buoyant modules.

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CorPower Ocean, Balmoral and Wave Venture will combine their efforts to assess the viability of the Polyester/E-Glass material and the panels’ topography applied to the specific case of a prime mover of point absorber Wave Energy Converters (WEC).

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The Stage 2 NetBuoy project encompasses two areas seen as being key to the path towards cost competitive wave energy – impermeable fabrics to provide compliant buoyant modules and fibre rope ‘load nets’ to encapsulate the buoyant modules.

Project Keywords: LCOE, Design Load Cases, Simulation, Fabrication, Structure, Survival, Point Absorber, Hybrid, Reliability, Materials, Stage 2

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Within Stage 3, tank testing, open water testing, and further design work will be completed to validate the proposed impacts that NetBuoy can convey to WEC devices and advance the system TRL to 7.

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