Navigating the Building Energy Efficiency Research Landscape: Bibliometric Analysis and Literature Review (2003–2023): Part II

This is Part II of a study utilising a mixed-method approach that integrates bibliometric analysis and systematic literature review to investigate the building energy efficiency research environment from 2003 to 2023. China, the USA and European nations are prominent contributors to building energy efficiency research. The emphasis of research has transitioned from individual building elements to comprehensive, systems-oriented methodologies. We delineate research gaps and emerging trends, providing a framework for researchers, policymakers and practitioners to progress in the domain of building energy efficiency.