A life cycle thinking centered methodology for energy retrofit evaluation

Abstract

Energy retrofits can improve the sustainability of a building by decreasing the energy consumption and resulting GHG emissions throughout its life. Adopting critical life cycle thinking is crucial when deciding on how to implement building retrofits. This article first evaluates innovative and proven building energy retrofits through a life cycle thinking lens. Next, it develops a methodological framework to assess building retrofits using four principal measures: environmental, economic, social, and technical criteria. The proposed method was demonstrated using an institutional building in Windsor, Ontario, as a case study. The case study revealed that the selected retrofit might result in the least energy savings, but it is still the preferred alternative because other factors can present valuable trade-offs that are desirable. The outcomes of this research, with the demonstrated tool, will assist building managers in determining the optimal energy retrofit for their buildings.