Welcome to join 2021 the 9th International Conference on Smart Energy Grid Engineering (SEGE 2021), which will be held at Ontario Tech University, Oshawa, Canada during August 11-13, 2021. For papers submitted to SEGE 2021, we offer the publication as following: IEEE Conference Proceedings. SEGE 2021 Conference proceedings will be submitted for inclusion into IEEE Xplore as well as other Abstracting and Indexing (A&I) databases. Conference venue： Ontario Tech University Sumitting method: Please log in the Electronic Submission System ( .pdf only) to submit your full paper by: https://easychair.org/conferences/?conf=sege2021 Please feel free contact with us: Mia Hu (Conference Secretary) E-mail: ieee_sege@163.com Tel: +905 7218668 ext. 5497 For more information about international conferences, please visit our conference website: SEGE 2021 website: http://www.ieee-sege.com/