Multi-Criteria Assessment Approach for a Residential Building Retrofit in Norway.pdf (1.24 MB)
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Multi-criteria assessment approach for a residential building retrofit in Norway

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journal contribution
posted on 27.05.2020, 12:41 by Xiangjie ChenXiangjie Chen, Ke Qu, John Calautit, Anandasivakumar Ekambaram, Wei Lu, Caroline Fox, Guohui Gan, Saffa Riffat
This paper presents a multi-criteria assessment approach for a wide range of energy efficient measures and their combinations applied for a residential building retrofit in Norway. A number of passive, active and renewable energy efficient measures (EEMs) have been selected and defined. Based on the level of energy saving potentials, these EEMs have been combined into 18 retrofit combination packages (COMBs) and grouped into various retrofit levels (Moderate Retrofit-I, II, III and Extensive Retrofit). The annual primary energy consumptions (heating, hot water and electricity) for the proposed combination packages were simulated in IESVE building energy simulation software. This is then followed by two levels of assessments: i) the comprehensive assessments of the key retrofit priorities including primary energy reduction, global costs, payback period and the carbon emission reduction and ii) social assessment with the aim to represent various stakeholders’ views on the selected COMBs using a metric of weighting factors. Based on this, a multi-criteria assessment approach featuring a novel ranking factor (EEES) taking into account of energy, economic, environmental and social aspects during retrofit process was adopted. This approach quantifies different stakeholders’ perspectives on the proposed COMBs, which could enable various stakeholders’ involvement in the retrofit decision making process. It was concluded that COMB 05 and 06, which include only 2–3 passive and active EEMs have been ranked and chosen as the most favourable retrofit solutions, with EEES value equalled to 25.6 from various stakeholders’ perspectives. The impacts of changing renewable energy prices and PV generated feed-in tariff rates on the global costs, carbon reductions and primary energy consumptions of the proposed COMBs, which have rarely been analysed in literature, are numerically investigated in this research. Such renewable EEMs which are greatly recommended by the European Commission, are expected to gain further support from national level government renewable incentives. Therefore, it is envisaged that in the long term, Extensive Retrofits incorporating mostly renewable EEMs could become more affordable and cost effective.

Funding

European Commission Horizon 2020 project RezBuild (project contract number: 768623).

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

Energy and Buildings

Volume

215

Issue

May 2020

Publisher

Elsevier

Version

AM (Accepted Manuscript)

Rights holder

© Elsevier

Publisher statement

This paper was accepted for publication in the journal Energy and Buildings and the definitive published version is available at https://doi.org/10.1016/j.enbuild.2019.109668.

Acceptance date

01/12/2019

Publication date

2019-12-02

Copyright date

2019

ISSN

0378-7788

eISSN

1872-6178

Language

en

Depositor

Dr Xiangjie Chen. Deposit date: 26 May 2020

Article number

109668