讲座题目Water scarcity, induced technology selection, and the fightback of coal

讲座嘉宾:张林   香港城市大学




张林,香港城市大学能源及环境学院助理教授,兼任该校公共政策系助理教授、博士生导师。其长期从事能源经济学、能源需求与效率、能源-环境-经济系统建模的研究工作,擅长运用经济学、运筹学、数理统计等多学科交叉的理论方法研究能源经济中的实际问题和相关政策。在SCI/SSCI发表了20余篇论文,其中相当部分发表在European Economic Review(经济学大类顶尖期刊)、China Economic ReviewJournal of Environmental Economics and Management(环境经济学顶尖A期刊)、 Energy EconomicsResource and Energy Economics(资源经济学顶尖A期刊)、The Energy Journal(国际能源经济学会IAEE会刊、能源经济学顶尖A期刊)、 Energy Efficiency(欧洲节能经济协会ECEEE和美国节能协会ACEEE的共同会刊)和Energy Policy上。曾主持或参与瑞士联邦能源局、瑞士国家科学基金会、香港研究资助局、欧洲环境署等机构支持赞助的多个科研项目。此外,张林拥有苏黎世联邦理工学院的经济学博士学位和北京大学的双学士学位。


Water is one of the essential inputs for traditional electricity generation technologies including coal-fired power. We match the plant-level information with the meteorological data between 2007 and 2014 to examine how water scarcity affects the technology selection for electricity generation in China. We find that drought decreases the electricity generation from hydro technology largely, while the fossil-based technology increases in response to water scarcity. For fossil-based technology, once-through system and wet-recirculating system are favorable for cooling when drought happens. Drought also increases the use of surface water and wastewater for cooling. The results are robust when considering the annual, seasonal, and monthly climate variations. We also show that water scarcity increases CO2 emissions. We conclude that water scarcity mitigates the effort of energy transition towards renewable.