(2022)Kyoto-Zhejiang-Ajou Joint Symposium on Energy Science was held on Dec. 9th 2022 at Kyoto University Yoshida Campus on site and online hybrid. The symposium is organized by Graduate School of Energy Science and Institute of Advance Energy Integrated Research Center for Carbon Negative Science. There are 74 participants from Ajou university (Korea), Kyoto University (Japan) and Zhejiang University (China) attended this symposium. And there are 6 oral presentations and 7 poster presentations from Graduate School of Energy Science.