Wind analyses, estimated over the North Atlantic Ocean with a focus on some specific regions, are one the main ARCWIND (http://www.arcwind.eu/) project deliverables. They are estimated from various remotely sensed wind observations in combination with numerical model (WRF), with regular space (0.25deg in latitude and longitude), and time (00h:00, 06h:00, 12h:00, 18h:00 UTC), and based the method described in (Bentamy A., A. Mouche, A. Grouazel, A. Moujane, M. A. Ahmed. (2019): Using sentinel-1A SAR wind retrievals for enhancing scatterometer and radiometer regional wind analyses . International Journal Of Remote Sensing , 40(3), 1120-1147 . https://doi.org/10.1080/01431161.2018.1524174).

Sediment average grain size in the European North-East Atlantic and Mediterranean waters was generated from Euseamap 2023 sediment categories. This rough granulometry estimate may be used for habitat models at meso- and large scale.

Ocean energy is a relevant source of clean renewable energy, and as it is still facing challenges related to its above grid-parity costs, tariffs intended to support in a structured and coherent way are of great relevance and potential impact. The logistics and marine operations required for installing and maintaining these systems are major cost drivers of marine renewable energy projects. Planning the logistics of marine energy projects is a highly complex and intertwined process, and to date, limited advances have been made in the development of decision support tools suitable for ocean energy farm design. The present paper describes the methodology of a novel, opensource, logistic and marine operation planning tool, integrated within DTOceanPlus suite of design tools, and responsible for producing logistic solutions comprised of optimal selections of vessels, port terminals, equipment, as well as operation plans, for ocean energy projects. Infrastructure selection logistic functions were developed to select vessels, ports, and equipment for specific projects. A statistical weather window model was developed to estimate operation delays due to weather. A vessel charter rate modeling approach, based on an in-house vessel database and industry experience, is described in detail. The overall operation assumptions and underlying operating principles of the statistical weather window model, maritime infrastructure selection algorithms, and cost modeling strategies are presented. Tests performed for a case study based a theoretical floating wave energy converter produced results in good agreement with reality.

Cost reductions in nascent forms of Renewable Energy Technology (RET) are essential for them to contribute to the energy mix. Policy intervention can facilitate this cost reduction; however, this may require a significant investment from the public sector. These cost reductions fall into two broad categories: (1) incremental cost reductions through continual improvements to existing technologies, and (2) radical innovation where technologies that significantly differ from the incumbents are developed. This study presents a modelling methodology to integrate radical innovation in RET experience curve and learning investment analysis, using wave energy as an example nascent RET. This aims to quantify the potential effects of radical innovation on the learning investment, allowing the value of successful innovation to be better analysed. The study highlights the value offered by radical innovations in long-term deployment scenarios for wave energy. This suggests that high-risk R&D efforts in nascent RET sectors, even with low success rates, could still present significant expected value in offsetting future revenue support.

This document aims at listing in an exhaustive way, the different failure modes that can appear on dynamic subsea cables. For this purpose, it include a full and detailed literature review in order to better understand the different modes of degradation and identify the most significant mechanisms of failure across and along cables. Damage of the dynamic cables could be induced by different parameters, including electrical stress, mechanical loadings, water ingress or overheating, which can all lead to a partial or total loss of their electrical transport capacity.

This document identify and analyse different damage initiation mechanisms and their propagation through the dynamic cable. It will consist on building failure scenarios from initiation, propagation and final failure steps, and put the degradation mechanisms in relation with the nature of stresses that has been at the origin of the failure.

This document defines three reference cases of floating windfarms, and failure scenarios which will be used as input data for tasks 4.2 and 4.3.

This study provides the first maps of the Benthic Invertebrate Biophonies (BIB) at ecologically relevant scales and shows that they can be used to identify, quantify, follow and track benthic activity hot-spots. In combination with biological and ecological information, passive acoustic monitoring using such maps can be a powerful complementary tool for ecological studies, such as the quantification of grazing activity or the evaluation of the efficiency of marine ecologic restoration programs.

This document proposes a comprehensive list of quantitative and qualitative analysis criteria to classify the sensors technologies. This document highlight the theoretical and practical advantages and limitations of each technique, making a clear distinction between the installation phase and the operating phase.