Dr Lee received his PhD in Chemical Engineering from National Taiwan University (NTU) in 2011, and conducted postdoctoral research at NTU (2011-2013) and University of the Witwatersrand, Johannesburg, South Africa (2013-2014). His research centres on process integration for energy savings and waste reduction, with research interests covering low-carbon energy system planning and hybrid power system design. He has published more than 30 journal papers and 40 conference papers, and coedited a book on batch process integration. Dr Lee is working closely with several collaborators mainly in South-east Asia and Africa. Reviews