Science mapping the knowledge domain of energy performance research in the AEC industry: A scientometric analysis

This study aims to reveal the current state of energy performance research in the AEC industry and literature. The research objective is to identify hot topics (i.e., knowledge domain) and hot keywords (i.e., knowledge base), productive countries and institutions, research gaps, and emerging areas in this domain (i.e., knowledge evolution). For this purpose, systematic bibliometric and scientometric analyses were performed by referring to 5489 bibliometric records published between 1991 and 2023. CiteSpace, VOSviewer, and Gephi were used for performing scientometric analysis. The key points include (1) promoting research collaborations between countries and institutions, (2) uncovering gaps and requirements of optimizing energy performance through pre construction, construction as well as operation and maintenance phases, (3) identifying the target market for stakeholders, investors, and policymakers, and (4) guiding to determine the common grounds for international regulations and policies. Further, this study presents a knowledge map summarizing the prominent research results. The contribution is to provide a holistic comprehension of the recent status, hot keywords and topics, productive countries and institutions, research gaps, and emerging areas of energy performance. The gaps revealed in this study show possible future research directions, necessities, and the fields that should be investigated. Accordingly, this research would be a valuable guideline for professionals focusing on energy performance.