Influence of policies towards building retrofitting for energy efficiency in Zimbabwe using structural equation model

What the paper says

Purpose Mechanisms and policies to mitigate the negative impact caused by climate change and improve energy efficiency through building retrofitting cannot be overstated. However, using a structural equation model (SEM) may influence policies to improve building retrofitting for energy efficiency. There is a paucity of studies concerning Zimbabwe’s policies’ influence on building retrofitting for energy efficiency using the SEM method. Thus, this study aims to assess and develop a model highlighting the influence of policies towards retrofitting Zimbabwe’s buildings for energy efficiency. Design/methodology/approach This study used a quantitative research design using a questionnaire survey administered to knowledgeable respondents in building retrofitting and energy efficiency in Zimbabwe. The researcher analysed the data through suitable statistical methods (descriptive and inferential). The inferential tests include the Shapiro–Wilk test, Kruskal–Wallis H-test, exploratory factor analysis and Heterotrait–Monotrait ratio analysis to develop the SEM that validated the policies influencing retrofitting buildings. Findings The results show policies influencing building retrofitting for energy efficiency in Zimbabwe and developed an SEM that clustered the key influencing policies into three main groups. This includes enabling policy, specification of raw materials and guidance to stakeholders involved in the energy efficiency of buildings. Originality/value By appraising policies influencing building retrofitting for energy efficiency in Zimbabwe, this research intends to discover insights that can improve energy efficiency and sustainability in other developing countries. Also, using the SEM to develop the three themes influencing policies developed from the SEM have made the study a focal point and form part of the implications.