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Criteria Weighting for Green Technology Selection as Part of Retrofit Decision Making Process for Existing Non-domestic Buildings

Si, J; Marjanovic-Halburd, L; (2018) Criteria Weighting for Green Technology Selection as Part of Retrofit Decision Making Process for Existing Non-domestic Buildings. Sustainable Cities and Society , 41 pp. 625-638. 10.1016/j.scs.2018.05.051. Green open access

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Abstract

The implementation of green technologies, as part of retrofit, can significantly improve building performance. However, green technology selection is a complex decision making process due to multiple evaluation criteria and often conflicting interests of different stakeholders involved. This paper proposes default criteria weights based for previously-developed criteria tree consisting of in total 39 criteria organised around environmental, economic, social and technical performance of green technologies. Web-based surveys of experts including architects, engineers, planners in the UK and China were conducted to capture expert opinions on sustainability and technical criteria. Analytical Hierarchy Process (AHP) method was used to calculate default criteria weights. Comparisons between expert groups in different countries were also performed. Results show that UK experts more concern about Economic performance of green technology, specifically with UK architects and engineers assigning high weights on Cost. For the Environmental category, Reduction of energy consumption and Reduction of water consumption are ranked as the most important topics under In-use environmental performance by all experts. UK experts have shown a growing concern on Reduction of water consumption. Under The improvement of indoor environmental quality, Thermal comfort is ranked as the most important criterion by UK experts and Visual comfort is weighted as the first priority by Chinese experts. Compared with UK experts, Chinese experts have placed a significant importance on Technical criteria, represented by engineer group emphasising on Durability for this category.

Type: Article
Title: Criteria Weighting for Green Technology Selection as Part of Retrofit Decision Making Process for Existing Non-domestic Buildings
Open access status: An open access version is available from UCL Discovery
DOI: 10.1016/j.scs.2018.05.051
Publisher version: https://doi.org/10.1016/j.scs.2018.05.051
Language: English
Additional information: This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions.
Keywords: Non-domestic building retrofi, tDecision making process, Criteria weighting, Analytical Hierarchy Process (AHP) method
UCL classification: UCL
UCL > Provost and Vice Provost Offices
UCL > Provost and Vice Provost Offices > UCL BEAMS
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment
UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of the Built Environment > Bartlett School Env, Energy and Resources
URI: https://discovery.ucl.ac.uk/id/eprint/10060584
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