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Comparative techno-economic analysis of large-scale renewable energy storage technologies

查看全文 作　　者：Lincai [1,2]Li;Bowen [1,2,5]Wang;Kui [1,2]Jiao;Meng [5]Ni;Qing [1,2]Du;Yanli [3]Liu;Bin [1,3]Li;Guowei [1,4]Ling;Chengshan [1,3]Wang 高影响力作者 机构地区：[1]National Industry-Education Platform of Energy Storage,Tianjin University,Tianjin,China;[2]State Key Laboratory of Engines,Tianjin University,Tianjin,China;[3]Key Laboratory of Smart Grid of Ministry of Education,Tianjin University,Tianjin,China;[4]State Key Laboratory of Chemical Engineering,Tianjin University,Tianjin,China;[5]Department of Building and Real Estate,Research Institute for Sustainable Urban Development(RISUD),Research Institute for Smart Energy(RISE),The Hong Kong Polytechnic University,Hung Hom,Kowloon,Hong Kong,China高影响力机构 出　　处：《Energy and AI》索引2023年第14卷第4期,共12页高影响力期刊 基　　金：This research is supported by the National Natural Science Founda-tion of China(No.51921004);B.Wang thanks the funding support by Hong Kong Scholars Program(No.XJ2021033). 摘　　要：Energy storage is an effective way to address the instability of renewable energy generation modes,such as wind and solar,which are projected to play an important role in the sustainable and low-carbon society.Economics and carbon emissions are important indicators that should be thoroughly considered for evaluating the feasibility of energy storage technologies(ESTs).In this study,we study two promising routes for large-scale renewable energy storage,electrochemical energy storage(EES)and hydrogen energy storage(HES),via technical analysis of the ESTs.The levelized cost of storage(LCOS),carbon emissions and uncertainty assessments for EESs and HESs over the life cycle are conducted with full consideration of the critical links for these routes.In order to reduce the evaluation error,we use the Monte Carlo method to derive a large number of data for estimating the economy and carbon emission level of ESTs based on the collected data.The results show that lithium ion(Li-ion)batteries show the lowest LCOS and carbon emissions,at 0.314 US$kWh-1 and 72.76 g CO_(2) e kWh^(-1),compared with other batteries for EES.Different HES routes,meaning different combinations of hydrogen production,delivery and refueling methods,show substantial differences in economics,and the lowest LCOS and carbon emissions,at 0.227 US$kWh^(-1) and 61.63 gCO_(2) e kWh^(-1),are achieved using HES routes that involve hydrogen production by alkaline electrolyzer(AE),delivery by hydrogen pipeline and corresponding refueling.The findings of this study suggest that HES and EES have comparable levels of economics and carbon emissions that should be both considered for large-scale renewable energy storage to achieve future decarbonization goals. 关 键 词：Large-scale renewable energy storage Techno-economic analysis Carbon emissions Electrochemical energy storage Hydrogen energy storage
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