The need for a network of doctoral engineers with interdisciplinary skills: The UK leads the world in research, innovation, development, demonstration & deployment in wave and tidal technologies. It has 35% & 50% of European wave and tidal current energy potential respectively, and 13% of the shallow-water offshore wind potential. Existing offshore wind technologies could be used to meet 15% of UK electricity demand, with significantly greater potential available in deeper waters for new innovative technologies. The 2017 Digest of UK Energy Statistics shows that wind energy capacity is 16GW (with 5.3GW offshore). The UK has a greater installed capacity of tidal current technologies and has demonstrated a greater number of wave technologies than the rest of the world put together. UK and European offshore wind capacity is expected to increase, respectively by 1 and 2.5 GW/year until 2030. Bloomberg New Energy Finance have projected 115GW of global installed offshore energy capacity by 2030. Cambridge Econometrics have identified that to drive even just this UK development, by 2032, offshore wind would alone need to grow human capacity in the sector to around 60,000 FTE jobs in the UK, with 14,000 directly employed in managerial and professional engineering and scientific roles. The challenges to define and develop the necessary technologies and know-how for the ORE sector are defined by the interaction and inter-dependence of: impact on the natural environment; its energy resources; the emergence of new innovative technologies; manufacture, deployment, operation and maintenance at scale; micro- and macro-economic appraisal; regulation & policy; social & environmental acceptance. Prior experience in IDCORE and Supergen UKCMER, recent roadmaps, and advice from industrial partners show that we must train a connected network of scientists and engineers with deep use-inspired research & innovation skills in their individual domains, and an appreciation of the challenges and state of the art solutions across the breadth of the sector. The approach that will be taken: We propose to establish a new centre, building on the strengths of the successful Industrial Doctoral Centre for Offshore Renewable Energy and Supergen UKCMER. To exploit synergy, opportunities for scale & additional impact, this proposal is made in partnership by the Universities of Edinburgh, Exeter and Strathclyde and the Scottish Association for Marine Sceince. Together we will deliver and operate a fully integrated CDT forming a best-with-best partnership to create future leaders for the British energy systems and to train them to fully integrate offshore renewables into the decarbonised energy systems of the future. Specifically, the new IDCORE CDT will * Graduate 50 new postgraduate students, supervised by a cohort of over 80 academic staff in the UK. * Use world-class UKRI funded facilities to provide cutting-edge training in engineering, science & inter-disciplinary areas; * Deliver impact from excellent research in integrated cross-disciplinary themes from the ocean to the end user; * Train research students throughout the full life cycle of research, spanning theory to practice, including engineering, physical, data & natural science, economics, management, leadership & social-science skills. Overview of the research areas of the centre: Experience, assisted by our industrial partners, has defined the need for research, training and innovation in the following areas: natural resource; environmental impact assessment (and mitigation); development of offshore energy technologies; new materials and science for components, sub-systems and devices in the offshore environment; data science; autonomous inspection and condition monitoring; remote and local operation and maintenance; energy conversion, conditioning, storage and delivery; energy economics, policy and regulation. IDCORE provides this.