Abstract This paper is aimed at analysing the levelised cost of energy (LCOE) of onshore wind turbine generators (WTGs) that are in operation beyond their design lifetime. In order to do so, the LCOE approach is introduced and input parameters are discussed for a UK deployment. In addition, a methodology is presented to support economic lifetime extension and investment decision making at the end of an asset's design lifetime. As part of a case study, a wind farm consisting of six 900 kW WTGs is subjected to different combinations of i) lifetime extension (5–15 years), ii) input assumptions (pessimistic, central, optimistic), and iii) reinvestment types (retrofits). Results indicate that in the central lifetime extension scenario, LCOE estimates of 22.40 £/MWh are achievable.

中文翻译：

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帮助延长风力涡轮机寿命的决策支持工具

摘要 本文旨在分析超过设计寿命运行的陆上风力涡轮发电机 (WTG) 的平准化能源成本 (LCOE)。为此，引入了 LCOE 方法并讨论了英国部署的输入参数。此外，还提出了一种方法来支持资产设计寿命结束时的经济寿命延长和投资决策。作为案例研究的一部分，由六个 900 kW 风力发电机组组成的风电场受到 i) 寿命延长（5-15 年）、ii) 输入假设（悲观、集中、乐观）和 iii) 再投资类型的不同组合（改造）。结果表明，在中央寿命延长方案中，可以实现 22.40 英镑/MWh 的 LCOE 估计值。