Digital twins in the net-zero carbon transition for the built environment

In recent years, there has been much focus on the role of digital twins (DT) in the areas of construction productivity, quality and indoor air quality. However, attention on promoting net-zero with DT is limited in the emerging construction literature. This highlights a significant research gap on the role of DT in net-zero research. Therefore, this study aims to explore the nexus between DT and net-zero research to identify prominent research topics and uncover under-researched areas that would improve the application of DT in the net-zero transition. A two-step review process involving scientometric and a critical review was conducted. The findings reveal that building energy, emissions assessment, artificial intelligence and solar energy are gaining traction in the DT-net-zero research nexus. However, the under-research net-zero areas that could be improved in future research are DT's relationship with blockchain, other renewable energies and cost effectiveness. This study would aid researchers and practitioners with knowledge on effective ways to promote DT in the net-zero transition for a more sustainable industry.