Dr Zhenjun Ma received his PhD degree in Building Energy Efficiency and Automation from the Hong Kong Polytechnic University in 2008. Before joining the Sustainable Buildings Research Centre at the University of Wollongong, Australia, in 2011, he worked as a Postdoctoral Fellow in the Department of Building Services Engineering at the Hong Kong Polytechnic University. Over recent years Zhenjun has been working extensively on energy efficiency and the sustainability of the built environment. His primary research interests focus on building control optimisation, desiccant cooling, renewable energy technologies, thermal energy storage using phase change materials, and building big data mining.