Welcome to join in the 2021 International Conference on Smart City and Green Energy (ICSCGE 2021)，which will be held in Da Nang, Vietnam, during November 20-22, 2021. Papers submitted to ICSCGE 2021 will be reviewed by the conference technical committees, and accepted papers will be published in ICSCGE 2021 International Conference Proceedings by IEEE, which will be included into IEEE Xplore and submitted to EI Compendex, Scopus and other major databases for indexing. Selected papers with extented version will be published in the International Journal of Smart Grid and Clean Energy, which will be indexed by Inspec, EBSCO, DOAJ, Ulrich's Periodicals Directory, Google Scholar, Crossref, etc. ICSCGE 2021 will be held in virtual mode. There are two methods for submitting your paper: 1.By our electric system: https://cmt3.research.microsoft.com/ICSCGE2021 2.By our contact email box: icscge@academic.net Please feel free contact with us: Jennifer Zeng (Conference Secretary) E-mail: icscge@academic.net Tel: +86-28-86512185 For more information about international conferences, please visit our conference website: ICSCGE 2021 Website: http://www.icscge.org