A multi-attribute review toward effective planning of end-of-life strategies for offshore wind farms

Jadali, Ali and Ioannou, Anastasia and Kolios, Athanasios (2021) A multi-attribute review toward effective planning of end-of-life strategies for offshore wind farms. Energy Sources, Part B: Economics, Planning and Policy, 16 (6). pp. 584-602. ISSN 1556-7257 (https://doi.org/10.1080/15567249.2021.1941434)

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Abstract

With many offshore wind turbines (OWTs) approaching the end of their estimated service life, there is an increasing demand for developing and evaluating end-of-life strategies that can maximize these assets’ value while at the same time satisfying the requirements of the stakeholders involved. This study aims to perform a detailed review and develop a framework that will consider multiple criteria in the decision-making process, presenting and discussing available technologies and strategies, as well as influencing factors such as schedule, cost and environmental impact. Service life extension, repowering and decommissioning are included in this review as the main end-of-life strategies considered by asset owners, and these are translated into four processes that are applicable to offshore wind farms through a generic decision tree. A SWOT analysis is also conducted which aims to compare the different characteristics of the proposed processes. The factors contributing to the uncertainty of the processes as well as lessons learnt from the oil & gas industry are also discussed.

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