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Interval type-2 fuzzy sets based multi-criteria decision-making model for offshore wind farm development in Ireland.

Deveci, Muhammet; Cali, Umit; Kucuksari, Sadik; Erdogan, Nuh


Muhammet Deveci

Umit Cali

Sadik Kucuksari

Nuh Erdogan


Offshore wind energy takes up an important place in Ireland’s renewable generation portfolio thanks to its abundant offshore wind resource. Optimal offshore site selection and developing site-specific energy policy instruments are of key importance to the success of offshore wind energy investments. In this respect, this study aims at developing a multi-criteria decision-making (MCDM) model considering technical, economic, environmental and social criteria to assess Ireland’s most promising offshore wind sites in terms of their sustainable development. An interval type-2 fuzzy sets based MCDM model is developed that integrates the score function with positive and negative solutions to achieve better results. Moreover, advanced energy economic metrics such as levelized cost of electricity with higher resolution are integrated into the decision-making process to make more precise decisions. Case studies are conducted for the five of the offshore sites in development pipeline. Results are compared to those of other state-of-the-art MCDM methods. It is found that Arklow Bank-2 is the most favorable site while Sceirde is the least site. The ranking of other sites is found to be Oriel>Dublin Array>Codling Park. It is shown that the proposed approach is superior in terms of stability and implementation as compared to its counterparts.


DEVECI, M, CALI, U., KUCUKSARI, S. and ERDOGAN, N. 2020. Interval type-2 fuzzy sets based multi-criteria decision-making model for offshore wind farm development in Ireland. Energy [online], 198, article 117317. Available from:

Journal Article Type Article
Acceptance Date Mar 2, 2020
Online Publication Date Mar 6, 2020
Publication Date May 1, 2020
Deposit Date Sep 9, 2021
Publicly Available Date Mar 7, 2022
Journal Energy
Print ISSN 0360-5442
Publisher Elsevier
Peer Reviewed Peer Reviewed
Volume 198
Article Number 117317
Keywords Offshore wind farm; Site selection; Levelized cost of electricity (LCOE); Decision-making; Interval type-2 fuzzy sets; Renewable energy
Public URL
Additional Information The supplementary material with this output can be found at the end of the main text of this accompanying file.


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