FLOAT Project - Task 1: Preliminary Float Design and Economical Considerations

Tanguy Marchalot, Jens Peter Kofoed, Eigil V. Sørensen, S.M.G. Hansen, Christian Frier

Research output: Book/ReportReport

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The objective of the FLOAT project is to study the reliability of high-performance fibre-reinforced concrete, also known as Compact Reinforced Composite (CRC), for the floats of wave energy converters. In order to reach commercial breakthrough, wave energy converters need to achieve a lower price of energy produced, comparable to prices currently obtained from offshore wind power, and this can be done by the use of more suitable materials. The flotation device is a key part of converters, as it accounts for a considerable share of initial investment, up to 27% depending on the converter (dexawave.com, 2011). CRC floats could be a very cost-effective technology with enhanced loading capacity and environmental resistance, and very low maintenance requirements, affecting directly the final energy price. The project involves DEXA Wave Energy Ltd, Wave Star A/S, Aalborg University and Hi-Con A/S. It is divided in 4 tasks:
Task 1: Preliminary float design and economic considerations
Task 2: Material characteristics
Task 3: Preliminary experiences
Task 4: The importance for wave energy
The present report covers Task 1.
Original languageEnglish
Place of PublicationAalborg
PublisherDepartment of Civil Engineering, Aalborg University
Number of pages30
Publication statusPublished - 2011
SeriesDCE Contract Reports


  • WaveStar
  • DEXA
  • Float Designs
  • CRC Concrete
  • Production Costs
  • Reinforced Concrete

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    Marchalot, T., Kofoed, J. P., Sørensen, E. V., Hansen, S. M. G., & Frier, C. (2011). FLOAT Project - Task 1: Preliminary Float Design and Economical Considerations. Department of Civil Engineering, Aalborg University. DCE Contract Reports, No. 113