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.

摘要

随着许多海上风力涡轮机 (OWT) 接近其预计使用寿命的终点，越来越需要制定和评估能够最大限度地提高这些资产价值同时满足利益相关者要求的退役策略涉及。本研究旨在进行详细审查并制定一个框架，该框架将在决策过程中考虑多个标准，展示和讨论可用技术和策略，以及进度、成本和环境影响等影响因素。本次审查将使用寿命延长、重新供电和退役作为资产所有者考虑的主要报废策略，并通过通用决策树将这些转换为适用于海上风电场的四个流程。还进行了 SWOT 分析，旨在比较所提议过程的不同特征。还讨论了导致过程不确定性的因素以及从石油和天然气行业中吸取的经验教训。