Application and extension of the TOPSIS method for the assessment of floating offshore wind turbine support structures

H. Martin, G. Spano, J. F. Küster, M. Collu, A. J. Kolios

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


The offshore wind industry is shifting its focus towards deeper water sites, more suited to floating rather than bottom fixed support structures. Floating support structures currently used for oil and gas platforms provide a starting point for the floating wind industry; however, the selection of an optimum structure is not trivial with several unique factors that contribute to its complexity. In this work programme, a methodology to rapidly assess several concepts for wind turbine floating support structures is proposed. Using the multi-criteria decision-making method, TOPSIS, configurations are rated for a range of attributes. In addition, two complementary methodologies have been developed that extend the TOPSIS capability by including an estimated impact of the uncertainties associated with each of the selected criteria, on the final choice of an optimum support structure. This methodology represents a robust yet flexible design tool to complement the early conceptual design process that is able to rapidly investigate a broad design space and narrow down the number of potential options suitable for floating wind turbines.

Original languageEnglish
Pages (from-to)477-487
Number of pages11
JournalShips and Offshore Structures
Issue number5
Publication statusPublished - 1 Oct 2013


  • conceptual design
  • floating wind turbines
  • FOWT
  • multi-criteria decision making (MCDM)
  • offshore wind
  • TOPSIS method
  • vertical axis wind turbines (VAWT)


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