N. H. Steven Tay’s main interests is in the area of phase change material (PCM) thermal energy storage. He was a research fellow in the Barbara Hardy Institute, University of South Australia from 2012 to 2015. In 2012, his research into PCM thermal storage systems was endorsed by the Australian Institute of Refrigeration Air conditioning and Heating (AIRAH) with a national Research Excellence Award. In 2014, the technology of this research has been culminated in an innovation patent (AU2013101456). In the following year (2015), he won the ANSTO Eureka Prize for Innovative Use of Technology. The Australian Museum Eureka Prizes are the most comprehensive national science awards, honouring excellence in Research and Innovation, Leadership, Science Communication and Journalism, and School Science. Steven is currently an Assistant Professor in Mechanical Engineering (Design and Manufacturing) at Newcastle University Singapore. He is also the degree programme director for a MSc programme in Energy and Sustainability. He is the lead author and co-author of more than 20 journal papers and book chapters in the area of PCM thermal energy storage.