Investigation of optimum crew transfer vessel fleet for offshore wind farm maintenance operations

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

The offshore wind industry, which aims to reduce the operational costs, usually achieved through learning curves and supply chain improvements, has seen drastic cost increase over the last five years. In order to sustain the competitiveness of the offshore wind industry against other renewable energy sources, the cost of offshore wind needs to come down to today's onshore cost. This cost reduction target can be achieved through optimising the offshore related operations which contribute the most to the operating expenditures (OPEX) of the offshore wind farms. In this paper, the investigation of optimum crew transfer vessel fleet, which indicates the influence of fleet size and characteristics of the vessels involved in the operations, is introduced with a focus on power production, total cost of the Operation and Maintenance (O&M) and revenue loss. A time domain Monte-Carlo approach is adopted while taking into consideration the climate parameters, failure characteristics of turbine components, the specification of crew transfer vessels, and the composition of vessel fleet. Through this extensive study, it is concluded the O&M related costs can be reduced significantly while the availability and the productivity of the turbines can be increased by optimising the use of the O&M vessel fleet in terms of fleet size and vessel capabilities.
LanguageEnglish
Pages31-52
Number of pages22
JournalWind Engineering
Volume39
Issue number1
Early online date13 Jan 2015
DOIs
Publication statusPublished - 1 Feb 2015

Fingerprint

Offshore wind farms
Costs
Turbine components
Cost reduction
Supply chains
Industry
Turbines
Productivity
Availability
Specifications
Chemical analysis

Keywords

  • offshore wind
  • operation and maintenance
  • crew transfer vessel
  • fleet optimisation
  • accessibility
  • operability

Cite this

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title = "Investigation of optimum crew transfer vessel fleet for offshore wind farm maintenance operations",
abstract = "The offshore wind industry, which aims to reduce the operational costs, usually achieved through learning curves and supply chain improvements, has seen drastic cost increase over the last five years. In order to sustain the competitiveness of the offshore wind industry against other renewable energy sources, the cost of offshore wind needs to come down to today's onshore cost. This cost reduction target can be achieved through optimising the offshore related operations which contribute the most to the operating expenditures (OPEX) of the offshore wind farms. In this paper, the investigation of optimum crew transfer vessel fleet, which indicates the influence of fleet size and characteristics of the vessels involved in the operations, is introduced with a focus on power production, total cost of the Operation and Maintenance (O&M) and revenue loss. A time domain Monte-Carlo approach is adopted while taking into consideration the climate parameters, failure characteristics of turbine components, the specification of crew transfer vessels, and the composition of vessel fleet. Through this extensive study, it is concluded the O&M related costs can be reduced significantly while the availability and the productivity of the turbines can be increased by optimising the use of the O&M vessel fleet in terms of fleet size and vessel capabilities.",
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Investigation of optimum crew transfer vessel fleet for offshore wind farm maintenance operations. / Dalgic, Yalcin; Lazakis, Iraklis; Turan, Osman.

In: Wind Engineering, Vol. 39, No. 1, 01.02.2015, p. 31-52.

Research output: Contribution to journalArticle

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