Opportunities with renewable wave energy and challenges in the design of floating wave energy converter systems
Paper in proceeding, 2021

Wave energy is one among several resources of renewable energy which needs to be utilized in the future to solve human’s energy demand. Several technologies have been proposed but yet there are few commercial concepts that have been connected to the grid. The floating wave energy converters (WECs) will have an important role in the supply of electricity in the future. But there are several challenges in their designs on systems and component levels that need to be overcome and solved. There are also challenges related to installation and maintenance. The current paper presents and discusses examples of challenges on component and systems level, with reference to floating WECs. One specific concept is studied in detail with an emphasis on mooring design, fatigue life of elastic mooring systems and umbilical cables, power performance of individual WECs vs WECs installed in wave parks. The levelized cost of electricity method is used to compare some configurations that have been studied in more detail. Examples of results from numerical simulations and full-scale measurements on a floating heave point-absorber are presented.

Elastic mooring systems


Wave energy

Levelized cost of electricity, umbilical cables


Jonas Ringsberg

Chalmers, Mechanics and Maritime Sciences (M2), Marine Technology

Shun-Han Yang

Chalmers, Mechanics and Maritime Sciences (M2), Marine Technology

Proceedings of the International Conference on Offshore Mechanics and Arctic Engineering - OMAE

Vol. 9 V009T09A008
9780791885192 (ISBN)

2021 40th International Conference on Ocean, Offshore and Arctic Engineering, OMAE 2021
Virtual, Online, ,

INTERACT - The interaction of metals and biocides with the selection of antibiotic-resistant bacteria

Formas (2012-8), 2013-01-01 -- 2017-12-31.

ELASTMOOR - Elastic mooring systems for wave energy converters

Swedish Energy Agency (43995-1), 2017-04-01 -- 2020-05-31.

Driving Forces

Sustainable development

Areas of Advance


Subject Categories

Energy Systems

Marine Engineering

Other Electrical Engineering, Electronic Engineering, Information Engineering



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