Noble, Donald R.O’Shea, MichaelJudge, FrancesRobles, EiderMartinez, RodrigoKhalid, FaryalThies, Philipp R.Johanning, LarsCorlay, YannGabl, RomanDavey, Thomas A. D.Vejayan, NithiananthanMurphy, Jimmy2021-09-06Noble , D R , O’Shea , M , Judge , F , Robles , E , Martinez , R , Khalid , F , Thies , P R , Johanning , L , Corlay , Y , Gabl , R , Davey , T A D , Vejayan , N & Murphy , J 2021 , ' Standardising Marine Renewable Energy Testing: Gap Analysis and Recommendations for Development of Standards : Gap analysis and recommendations for development of standards ' , Journal of Marine Science and Engineering , vol. 9 , no. 9 , 971 , pp. 971 . https://doi.org/10.3390/jmse90909712077-1312researchoutputwizard: 11556/1231Publisher Copyright: © 2021 by the authors. Licensee MDPI, Basel, Switzerland.Marine renewable energy (MRE) is still an emerging technology. As such, there is still a lack of mature standards and guidance for the development and testing of these devices. The sector covers a wide range of disciplines, so there is a need for more comprehensive guidance to cover these. This paper builds on a study undertaken in the MaRINET2 project to summarise recommendations and guidance for testing MRE devices and components, by reviewing the recently published guidance. Perceived gaps in the guidance are then discussed, expanding on the previous study. Results from an industry survey are also used to help quantify and validate these gaps. The main themes identified can be summarised as: the development progression from concept to commercialisation, including more complex environmental conditions in testing, accurately modelling and quantifying the power generated, including grid integration, plus modelling and testing of novel moorings and foundation solutions. A pathway to a standardised approach to MRE testing is presented, building on recommendations learnt from the MaRINET2 round-robin testing, showing how these recommendations are being incorporated into the guidance and ultimately feeding into the development of international standards for the marine renewable energy sector.1429795enginfo:eu-repo/semantics/openAccessjournal article10.3390/jmse9090971Gap analysisGuidanceStandardsMarine renewable energyTank testingRound-RobinGap analysisGuidanceStandardsMarine renewable energyTank testingRound-RobinCivil and Structural EngineeringWater Science and TechnologyOcean EngineeringSDG 7 - Affordable and Clean EnergyProject IDinfo:eu-repo/grantAgreement/EC/H2020/731084/EU/Marine Renewable Infrastructure Network for Enhancing Technologies 2/MaRINET2info:eu-repo/grantAgreement/EC/H2020/731084/EU/Marine Renewable Infrastructure Network for Enhancing Technologies 2/MaRINET2Funding InfoThis research was funded by European Union’s Horizon 2020 research and innovation programme under grant agreement number 731084, project MaRINET2 (Marine Renewable Infras tructure Network for Enhancing Technologies 2).This research was funded by European Union’s Horizon 2020 research and innovation programme under grant agreement number 731084, project MaRINET2 (Marine Renewable Infras tructure Network for Enhancing Technologies 2).http://www.scopus.com/inward/record.url?scp=85114715899&partnerID=8YFLogxK