Framework for the prediction of the reliability, economic and environmental criteria and assessment methodologies for Moorings and Foundations

Document

Date
18/01/2016

This document reports on the framework for the prediction of the reliability, economic and environmental criteria and assessment methodologies for Moorings and Foundations.

The main output of these three tasks represent the outcome of the three cross-cutting themes (i.e. Reliability, Economics and Environment) applied to moorings and foundations and are described in as many sections within the document, respectively Section 1, Section 2 and Section 3.

Furthermore this document can be considered complementary to Deliverable 3.4 where, in a similar fashion, the same cross-cutting themes have been applied to electrical infrastructure.

Section 1 reports on the reliability of moorings and foundation systems. The RAM analyses the type, quantity and hierarchical relationship of components and sub‐systems (Reliability Assessment Sub‐Module) and it is described in the context of Moorings and Foundation and two case study are shown.

The Economics analysis is described in Section 2. The DTOcean tool is capable to calculate a different number of array layouts, and the optimizations process will hinge around yielding the lowest LCOE (Levelized Cost of Energy). In this regard a correct prediction of CapEX and OpEX is of high importance.

Functions for estimating the cost of different types of moorings and foundations are described and two calculation examples applied to a fixed tidal turbine and a floating Wave energy device are shown.

Section 3 describes the different environmental functions developed within the EIAM (Environmental Impact Assessment Model) addressing different stages/phases of the Moorings and Foundations and their environmental assessment. Moreover an introduction to each single section is provided.