Sensitivity analysis of offshore wind farm operation and maintenance cost and availability
Martin, Rebecca and Lazakis, Iraklis and Barbouchi, Sami and Johanning, Lars (2016) Sensitivity analysis of offshore wind farm operation and maintenance cost and availability. Renewable Energy, 85. pp. 1226-1236. ISSN 0960-1481 (https://doi.org/10.1016/j.renene.2015.07.078)
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Abstract
Operation and Maintenance (O&M) costs are estimated to account for 14%-30% of total Offshore Wind Farm (OWF) project lifecycle expenditure according to a range of studies. In this respect, identifying factors affecting operational costs and availability are vital for wind farm operators to achieve the most profitable decisions. Many OWFs are built in stages and the important factors may not be consistent for the different phases. To address this issue, three OWF case studies are defined to represent two phases and a complete project. An initial qualitative screening sensitivity analysis was conducted to identify the most important factors of O&M affecting operating cost and availability. The study concluded that the important factors for total O&M cost were access and repair costs along with failure rates for both minor and major repairs. For time-based availability, the important factors identified were those related to the length of time conducting the maintenance tasks, i.e. the operation duration and the working day length. It was found that the two stages had similar results, but these were different compared to the complete project. In this case, the results provide valuable information to OWF operators during the project development and decision making process.
ORCID iDs
Martin, Rebecca, Lazakis, Iraklis ORCID: https://orcid.org/0000-0002-6130-9410, Barbouchi, Sami and Johanning, Lars;-
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Item type: Article ID code: 54113 Dates: DateEvent31 January 2016Published7 August 2015Published Online27 July 2015AcceptedSubjects: Technology > Engineering (General). Civil engineering (General) > Environmental engineering Department: Faculty of Engineering > Naval Architecture, Ocean & Marine Engineering Depositing user: Pure Administrator Date deposited: 31 Aug 2015 09:10 Last modified: 03 Dec 2024 01:14 Related URLs: URI: https://strathprints.strath.ac.uk/id/eprint/54113