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Power Absorption Measures and Comparisons of Selected Wave Energy Converters

[+] Author Affiliations
Aurélien Babarit

Ecole Centrale de Nantes, Nantes, France

Jorgen Hals, Adi Kurniawan, Torgeir Moan

Norges Teknisk-Naturvitenskapelige Universitet, Trondheim, Norway

Jorgen Krokstad

Statkraft, Oslo, Norway

Paper No. OMAE2011-49360, pp. 437-446; 10 pages
  • ASME 2011 30th International Conference on Ocean, Offshore and Arctic Engineering
  • Volume 5: Ocean Space Utilization; Ocean Renewable Energy
  • Rotterdam, The Netherlands, June 19–24, 2011
  • ISBN: 978-0-7918-4437-3
  • Copyright © 2011 by ASME


In this study, a selection of Wave Energy Converters (WECs) with different working principle is considered. It comprises a heaving device reacting against the seabed, a heaving self-reacting two-bodies device, a pitching device, and a floating OWC device. They are inspired by concepts which are currently under development. For each of these concepts, a numerical Wave To Wire (W2W) model is derived. Numerical estimates of the energy delivery which one can expect are derived using these numerical models on a selection of wave site along the European coast. This selection of wave site is thought to be representative with levels of mean annual wave power from 15 to 88 kW/m. Using these results, the performance of each WEC is assessed not only in terms of yearly energy output, but also in terms of yearly absorbed energy/displacement, yearly absorbed energy/wetted surface, and yearly absorbed energy per unit significant Power Take Off force. By comparing these criteria, one gets a better idea of the advantages and drawbacks of each of the studied concepts.

Copyright © 2011 by ASME



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