Sensitivity analysis of offshore wind farm operation and maintenance cost and availability

RENEWABLE ENERGY

卷:85

Article

Martin, Rebecca^1,3  Lazakis, Iraklis²  Barbouchi, Sami³  Johanning, Lars⁴ 

[1] Univ Edinburgh, Grad Sch Engn, Ind Doctoral Ctr Offshore Renewable Energy, Edinburgh EH9 3JL, Midlothian, Scotland

[2] Univ Strathclyde, Dept Naval Architecture Ocean & Marine Engn, Glasgow G4 0LZ, Lanark, Scotland

[3] EDF Energy R&D UK Ctr, London SW1E 5JL, England

[4] Univ Exeter, Coll Engn Math & Phys Sci, Penryn TR10 9FE, Cornwall, England

关键词: Offshore wind;    Sensitivity analysis;    Operations;    Maintenance;    Availability;    Cost modelling;   

DOI  :  10.1016/j.renene.2015.07.078

来源: Elsevier

【 摘 要 】

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. (c) 2015 The Authors. Published by Elsevier Ltd.

【 授权许可】

Free