2019 CSCE Annual Conference - Laval (Greater Montreal)

2019 CSCE Annual Conference - Laval (Greater Montreal) Conference

Rethinking energy retrofit evaluation: A life cycle thinking based approach

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Ms. Rania Toufeili, University of Windsor (Presenter)
Dr. Edwin Tam, University of Windsor
Dr. Rajeev Ruparathna, University of Windsor

Climate change poses a serious global threat, with existing outdated infrastructure as a major contributor. Today, 45% of Canada’s greenhouse gas emissions can be attributed to the production of heat and electricity for buildings. Green building energy retrofits are an effective strategy to help decrease the energy consumption and resulting emissions from a building. Green retrofitting also presents many environmental, social and economic benefits when compared against replacing an existing building with a new one. However, before applying energy retrofits their “true sustainability” must be evaluated. Much of the previous research focus on economic or environmental criterion for retrofit evaluation and do no consider all three pillars of sustainability. Moreover, the published literature has overlooked life cycle environmental, economic and social analysis for building retrofits. This paper aims to develop a methodological framework for energy retrofit evaluation. The proposed framework will incorporate multi criteria decision making (MCDM) and life cycle thinking together to develop a novel retrofit evaluation method. Key performance indicators (KPI) for retrofit evaluation would be identified through content analysis. These determined KPIs will be aggregated to create more complete set of evaluation criteria with respect to environmental, economic, social and technical aspects of building energy retrofits. Furthermore, life cycle assessments will be used as a tool for the evaluation of the retrofits and incorporate life cycle thinking by following the International Standards Organization (ISO) 14044 requirements and guidelines. This developed methodology will be comprehensive, simulation-based and adaptable to a variety of different retrofits and building types.