The growing interest in renewable energy concepts is accompanied by a large number of projects developing new technologies and carrying out research in the area of marine energy. As regards the environmental requirements of offshore energy devices, the different aspects concerning environmental protection seemed to be well covered by the different EU directives. A number of guidelines for the construction of offshore devices, especially for offshore wind energy plants, exist, mainly for oil and gas. The requirements for the H2OCEAN platform with regard to e.g. mooring, safety or construction the relevant information might in a broader sense be derived from the construction of oil and gas platforms. Regarding the concrete construction a number of different design codes exist, the guidelines from the European Marine Energy Centre (EMEC) should be mentioned. With regard to the national rules and regulations a large number of different regulations and laws establish the permit, licensing, construction and operation of marine energy devices. This will be done not only on a national basis but for certain aspects as well on a regional basis. This implies that the consenting procedures are divided between several bodies which could slow or delay the whole processes.

The scope of this document is to present a state of the art of different methodologies for the mooring, possible connections for the wave energy converters (developed by FPP), identify how to tug modules and launch SPJ, present possible risks for offshore installations with some examples from literature of removal and decommissioning of offshore structures.

This deliverable focuses on the logistics of the three products of the H2Ocean offshore platform, i.e. liquid hydrogen, aquaculture products and fresh water. Regarding fresh water logistics, a handling system for large towable bladders was designed and described. This will allow the logistical transport of fresh water by sea based on a modular flexible plastic container towed by a tug boat. The production and transport of hydrogen is one of the core outcomes of H2Ocean. Hence, the development of liquid hydrogen tanks has been performed to ensure a safe and efficient logistic system for hydrogen transport. With regard to the aquaculture production, the different vessels for transport as well as land-side logistic requirements are described.

This document outlines the conceptual maintenance manual for an H2Ocean installation off the coast of Portugal. Individual operational and maintenance requirements for the personnel, and vessels required by each technology have been recorded in Milestone MS17. Based on this work, a logistical analysis on resource sharing has been carried out, which includes a time series analysis of the operational weather windows and operational tasks essential for running the H2Ocean installation. It is estimated that a minimum of 223 essential personnel will be required to operate the installation at any one time. The operational staff oversee and carry out routine tasks. Subcontracted personnel and equipment are required to support the installation and are also considered within this report.

Decommissioning is a key issue from an economical but also environmental point of view both being angels in sustainable developments in the energy sector. The issue of decommissioning cost is considered in the final part of the overall life cycle of a product, like offshore infrastructures. As the multi-purpose offshore platform - like the H2Ocean design - is a new innovative approach without any practical experiences in decommissioning, the survey on methodologies in this deliverable will focus on the experiences made in oil and gas industry. Therefore, ensuring a complete compliance with environmental rules and operational and economical efficient methodologies are essential for the success of the complete decommissioning processes.

The H2OCEAN project involves technologies from a large number of fields. The devices corresponding to these technologies must be monitored to provide a control and operational mechanism. This monitoring will provide valuable information to detect failures in the operational system as well as to prepare corresponding repair and maintenance schedules. Furthermore, it will raise the corresponding alarms in case of risk situations for human beings such as hydrogen leakages. The monitoring mechanism has several challenges. First, it must be able to operate not only in fixed platforms but also in those floating. Second, it has to be compatible with standards inputs and outputs so that sensors incoming from a large spectrum of fields can be integrated with a low effort. Third, it has to be able to cover a large area with real-time communications. In order to handle the previous challenges, a wireless network based in the UHF band is designed. In addition to the aforementioned requirements, this scheme provides a large number of advantages. The design is flexible and scalable so it can be easily adapted to a large number of platform layouts.

This deliverable outlines all the tasks carried out by Treelogic concerning the design and development of an ICT Solution to manage operational risk environments from a secure manner. The main idea is to translate technical functionalities, such as HAZOP, risk matrix and security sensor network into programming language with the final goal to automate and ensure the control of risk events. For this, the IT solution has defined a process to gather and analyse output from assessment of the safety risks related to the platform operating environment, as well as data sources based on the security sensor network. Design and development have been based on interoperability, reliable and scalable solution.