Dr. Zhang Xiliang is a professor of management science and engineering and director of the Institute of Energy, Environment, and Economy at Tsinghua University. His current research interests include low-carbon energy economy transformation, integrated assessment of energy and climate policies, renewable energy and automotive energy. Since 2015, Professor Zhang has been heading the expert group on China’s national carbon market design, which is a taskforce of the Climate Change Department in the Ministry of Ecology and Environment. He served as the co-leader of the expert group for drafting the Renewable Energy Law and a member of the expert group for drafting the Circular Economy Promotion Law, which was appointed by the Environmental Protection and Resource Conservation Committee of the National People’s Congress in 2004 and 2007, respectively. He was also a lead author of the fourth and fifth IPCC Climate Change Assessment Report. He received the first prize of humanities and social sciences research of the Ministry of Education and the national leading talents award in ecology and environment protection of the Ministry of Ecology and Environment in 2020. Dr. Zhang is the current Chair of the Energy Systems Engineering Committee of the China Energy Research Society and a member of the board of directors of the Chinese Society of Sustainable Development and the China Renewable Energy Society. He holds a PhD in Systems Engineering from Tsinghua University.