Paper Publishing： Accepted papers submitted to ICGET 2021, after the peer reviewing process by at least 2-3 experts, will be published into Proceedings in the series with title "Advances in Sustainability Science and Technology" under Springer, The book series aims at bringing together valuable and novel scientific contributions that address the critical issues of renewable energy, sustainable building, sustainable manufacturing, and other sustainability science and technology topics that have an impact in this diverse and fast-changing research community in academia and industry.Or International Journal of Smart Grid and Clean Energy, all accepted papers will be indexed by CNKI, Google Scholar, Crossref, etc. and included in the Chemical Abstracts Services (CAS), CABI, Ulrich Periodicals Directory, Electronic Journals Library, Crossref, ProQuest.