The objective of MARINERG-i is to become the leading internationally Distributed Research Infrastructure (DRI) in the Offshore Renewable Energy (ORE) sector. Led by a central hub in Ireland, the DRI is composed of a network of test facilities spread across Europe (confirmed support from Belgium, Portugal, Spain, the Netherlands, the United Kingdom) with the critical mass of expertise, world-class equipment and e-infrastructure to support the design and advancement of ORE systems. Mission: Technical de-risking and increasing investor confidence through the development and implementation of best practices; quality metrics; standards; Leverage existing local knowledge and capabilities to accelerate the development of the ORE industry; Informing national and EU policy and investment strategies to capitalise on leadership in the ORE sector. By consolidating expertise, investment and access to infrastructures, the MARINERG-i DRI will foster innovation across a variety of ORE technologies and stages of development and help maintain Europe as a global leader in this constantly evolving industry. MARINERG-i will provide a one-stop shop via an e-infrastructure for users to apply for physical or remote testing within the network; data services e.g. access and use a dedicated virtual research environment for processing and analysis; apply for additional services e.g. technology development planning; training etc. MARINERG-i will develop a global scientific community with a broad expertise and knowledge across disciplines and has the facilities, tools and e-infrastructure necessary to support innovation and accelerate ORE development. The DRI will operate targeted testing campaigns and research projects to address fundamental questions within clearly identified research themes and across all the levels of technological development including: THEME 1 - Resource characterisation and environmental loading; THEME 2 - Design, Power Take-Off and performance characterisation/optimisation; THEME 3 - Cross-cutting and material testing; THEME 4 - Research for testing; Core recipients of MARINERG-i services will be technology developers across the ORE sector e.g. wind, wave, tidal energy, floating PV etc. Users will also include professional researchers, undergraduate and postgraduate students. Secondary stakeholders will also benefit from the added value of the DRI in terms of increased deployment and commercialisation of technologies, development of standards and best practices, policy and investment recommendations etc. This user group will include the wider ORE sector supply-chain, policy and standard developers, national and European funding bodies and investors.