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      PERFORMANCE INDICATORS FOR ENERGY EFFICIENCY RETROFITTING IN MULTIFAMILY RESIDENTIAL BUILDINGS

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          Abstract

          The energy performance of an existing building is the amount of energy consumed to meet various needs associated with the standardized use of a building and is reflected in one or more indicators known as Building Energy Performance Indicators (EnPIs). These indicators are distributed amongst six main factors influencing energy consumption: climate, building envelope, building services and energy systems, building operation and maintenance, occupants' activities and behaviour, and indoor environmental quality. Any improvement made to either the existing structure or the physical and operational upgrade of a building system that enhances energy performance is considered an energy efficiency retrofit. The main goal of this research is to support the implementation of multifamily residential building energy retrofits through expert knowledge consensus on EnPIs for energy efficiency retrofit planning. The research methodology consists of a comprehensive literature review which has identified 35 EnPIs for assessing performance of existing residential buildings, followed by a ranking questionnaire survey of experts in the built-environment to arrive at a priority listing of indicators based on mean rank. This was followed by concordance analysis and measure of standard deviation. A total of 280 experts were contacted globally for the survey, and 106 completed responses were received resulting in a 37.85% response rate. The respondents were divided into two groups for analysis: academician/researchers and industry practitioners. The primary outcome of the research is a priority listing of EnPIs based on the quantitative data from the knowledge-base of experts from these two groups. It is the outcome of their perceptions of retrofitting factors and corresponding indicators. A retrofit strategy consists of five phases for retrofitting planning in which the second phase comprises an energy audit and performance assessment and diagnostics. This research substantiates the performance assessment process through the identification of EnPIs.

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          Most cited references 30

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                Author and article information

                Journal
                jgrb
                Journal of Green Building
                College Publishing
                1552-6100
                1943-4618
                1943-4618
                Spring 2019
                : 14
                : 2
                : 109-136
                Author notes

                1. Assistant Professor, Department of Building Engineering and Management, School of Planning and Architecture, 6-B, IP Estate, New Delhi-110002, India, and Visiting Scholar, Michigan State University, East Lansing, USA; e-mail chaitali.basu@ 123456spa.ac.in

                ( *Corresponding Author)

                2. Professor, Department of Building Engineering and Management, School of Planning and Architecture, India

                3. Professor, Construction Management Program, School of Planning, Design and Construction, Michigan State University, East Lansing, USA

                Article
                jgb.14.2.109
                10.3992/1943-4618.14.2.109
                © 2019 College Publishing
                Page count
                Pages: 28
                Product
                Categories
                RESEARCH

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