Yang Liu Keywords Energy Economics energy policy evaluation Climate Finance and Emissions Trading Scheme energy efficiency technological change Macroeconomic Modellingrenewable energy energy market design electricity market design smart grid Read more about Yang Liu Dr. Liu is a Senior Research Fellow in the Energy Studies Institute of the National University of Singapore (NUS). He leads research and consultancy projects in the areas of the integration of renewables and energy efficiency, energy market design, and policy evaluation. Some of his recent work includes impact assessment of long-term energy technologies portfolio in Singapore, prospects of the energy services market in ASEAN, as well as electricity market design and business models for smart grids. Dr.