Press Release January 01, 1970

We won the climate battle!

Joint international collaboration on numerical code validation for wave energy converters.

An international group of experts has been working together on the validation of numerical modelling tools for wave energy converters under the auspices of the Ocean Energy Systems (OES) Technology Collaboration Programme of the International Energy Agency.

Initial results were presented at the European Wave and Tidal Energy Conference (EWTEC), held in Cork (Ireland) in late August 2017 and published in a joint paper prepared by 13 countries with experts from academia and industry. EWTEC is an international technical and scientific conference, focused on ocean energy with high standards for academic and industrial contributions.

The importance of developing a collaborative task on numerical code validation for wave energy converters was first proposed in 2015 by the USA delegate, Bob Thresher, from National Renewable Energy Laboratory in the United States and approved as a new joint Task by the OES Executive Committee in 2016. The Task leader, Kim Nielsen from Ramboll, says: “International collaboration should be strengthened and encouraged to bring talented teams together to tackle challenges on wave energy. Task 10 is playing a key role in facilitating high quality research through joint collaborative efforts on an international level”.

Initial studies were done with a heaving sphere and presented by the team of experts from Canada (Cascadia Coast Research and Dynamic Systems Analysis), Denmark (Ramboll, Technical University of Denmark, Aalborg University and Floating Power Plant), France (EC Nantes and Innosea), Ireland (University College Cork), Republic of Korea (KRISO), Netherlands (MARIN), Norway (EDRMedeso), Portugal (WavEC), Spain (Tecnalia and BCAM), Sweden (Chalmers University and KTH), UK (Queen´s University Belfast, Plymouth University and Wave Venture) and USA (National Renewable Energy Laboratory, Sandia National Laboratories, Hawaii Natural Energy Institute, ANSYS and Glosten).

An overview of some of the significant findings achieved by the international team are summarized here.

The project is about to launch its second project phase, which will incorporate validation aspects using experimental test data from the US Navy wave test facility, MASK basin. With this new phase the group is hoping to further improve the confidence and accuracy of numerical models for wave energy converters and to identify future research needs for computational tools.


Ocean Energy Systems (OES), also known as the Technology Collaboration Programme on Ocean Energy Systems is an intergovernmental collaboration between countries, which operates under a framework established by the International Energy Agency in Paris. Presently, the OES has 24 member countries and the European Commission with a number of other observer countries in the process of joining.

Executive Committee Secretary
Dr. Ana Brito e Melo
WavEC - Offshore Renewables
Rua D. Jerónimo Osório, 11, 1º andar, 1400-119 Lisboa
Tel: +351 21 8482655