National water use of coal-fired power generation:Hybrid life cycle assessment in China  

作　　者：Jja-Hai YUAN Ke-Xin PENG Hui-Ming XU Chang-Hong ZHAO Hao-Nan ZHANG 

机构地区：[1]School of Economics and Management,North China Electric Power University,Beijing 102206,China [2]Bejing Key Laboratoryof New Energy and Low Carbon Development(North China Electric PowerUniversiy),Bejing 102206,China [3]State Grid Digital Technology Holding Co.,Ltd.(State Gri Xiongan Financial Technology Group Co.,Ld.),Beijing 100053,China [4]Deparment of Economic Management,North China Electric Power University(Baoding),Baoding 071003,China

出　　处：《Advances in Climate Change Research》2024年第5期948-962,共15页气候变化研究进展（英文版）

基　　金：supported by the National Natural Science Foundation of China(72173043);the Fundamental Research Funds for the Central Universities(2023MS152);the National Natural Science Foundation of China(72303064).

摘　　要：Previous studies of water use for coal-fired power generation may have overlooked inter-sectoral impacts in the supply chain.Indeed,to devise effective water conservation strategies during the ongoing energy transition,it is of utmost importance to analyze the sectoral water use structures and flows in the supply chain and identify the sources of water scarcity.Therefore,based on the power sector-split environmentally extended input-output(EEIO)model and the life cycle assessment(LCA)idea,we comprehensively analyze the nexus between coal-fired power generation and water use from a sectoral perspective.Our findings reveal a complex and diverse water use structure in coal-fired power generation.The technology of production inherently determines the high intensity of water withdrawal,and the close intersectoral linkages,particularly with agriculture,construction,and some industrial sectors,in the production process result in an intricate web of indirect water withdrawal and blue water footprint(WF).Moreover,the grey WF,primarily sourced from coal mining and indirectly tied to tertiary industries,underscores critical areas for attention in water pollution management.Finally,water use in the coal-fired power sector is projected to remain at elevated levels in the short to medium term under various transition strategies.Following an in-depth exploration of the coal-fired power-water use nexus,the findings can offer new perspectives and specific entry points for sustainable energy development and water resource management.

关 键 词：Coal-fired power sector Water footprint Water withdrawal Hybrid life cycle assessment Water scarcity Structural path analysis 

分 类 号：TM621[电气工程—电力系统及自动化]