By incorporating an adequate balance between R&D and testing activities (including complex wave to wire modelling and scale model testing in wave tank), with commercialisation aspects (including proactive public climate and energy policies in different countries, as well as design assessment and engineering evaluation using Lean principles through the Lean Design-for-eXcellence, LDfX, tool), the project tackles some of the key challenges identified for the sector as it progresses towards commercialisation. Developed tools, namely the energy yield assessment tool, are demonstrated in the two case study site ports, the rubble-mound north breakwater of the port of Leixões and the Nelson Mandela vertical breakwater of the port of Las Palmas. This project, which received funding through the Ocean Energy ERA-NET Cofund initiative receiving funding from European Union under the Horizon 2020 Programme for Research and Innovation, is comprised of six partners from Belgium, Portugal and Spain.