2nd 2024 International Forum on Clean Energy Engineering was a great success held in Tokyo, Japan during January 19-21, 2024. It has provided the participants with a wondeful platform for exchanging their newest research findings in the field of clean energy. We'd like to thank the keynote speakers, including Prof. Xiao-Dong Zhou from University of Connecticut, USA, Prof. Jihyun Hwang from Korea Institute of Energy Technology, South Korea and Prof. Hossam A. Gabbar from Ontario Tech University, Canada. We also like to extend our sincere appreciation to the authors who have contributed their research papers to the conference.

All accepted and presented papers of FCEE 2024 have been published into Volume 521 of E3S Web of Conferences (Open Access proceedings in Environment, Energy and Earth Sciences):https://www.e3s-conferences.org/articles/e3sconf/abs/2024/51/contents/contents.html and have indexed by Scopus already.