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A stochastic fleet size and mix model for maintenance operations at offshore wind farms

A stochastic fleet size and mix model for maintenance operations at offshore wind farms

Category
Journal publication
Abstract
A fleet of vessels and helicopters is needed to support maintenance operations at offshore wind farms. The cost of this fleet constitutes a major part of the total maintenance costs, hence keeping an optimal or near-optimal fleet is essential to reduce the cost of energy. In this paper we study the vessel fleet size and mix problem that arises for the maintenance operations at offshore wind farms, and propose a stochastic three-stage programming model. The stochastic model considers uncertainty in vessel spot rates, weather conditions, electricity prices and failures to the system. The model is tested on realistic-sized problem instances, and the results show that it is valuable to consider uncertainty and that the proposed model can be used to solve instances of a realistic size.
Client
  • Norges forskningsråd / 205298
  • Norges forskningsråd / 193823
Language
English
Author(s)
  • Gundegjerde Christian
  • Halvorsen Ina Blomseth
  • Halvorsen-Weare Elin Espeland
  • Hvattum Lars Magnus
  • Nonås Lars Magne
Affiliation
  • Norwegian University of Science and Technology
  • SINTEF Ocean / Energi og transport
Year
2015
Published in
Transportation Research Part C: Emerging Technologies
ISSN
0968-090X
Volume
52
Page(s)
74 - 92