The 7th International Conference on New Energy and Future Energy Systems (NEFES 2022) was held from 25 to 28 October as an online conference (virtual conference without any physical participation). NEFES 2022 was originally planned to be held in Nanjing. Considering the health and safety of all the participants, pervasive travel restrictions as well as most authors’ appeals under COVID-19, it was finally changed into a full online conference. The technical program included Keynote Speeches, Invited Speeches, Oral Presentations and Poster Presentations.

Previous editions of the NEFES were held in Beijing (2016), Yunnan (2017), Shanghai (2018), Macao (2019), and online in 2020, 2021 due to the restrictions caused by the COVID-19 pandemic.

NEFES 2022 was co-organized by the School of Mechanical Engineering, Southeast University, China and it provided a platform for researchers, scientists, engineers and professionals from all over the world to present their latest research results and new ideas in terms of new energy and future energy systems. This volume records the proceedings of NEFES 2022 and it contains 34 peer-reviewed papers, selected from more than 170 submissions.

The topics of NEFES 2022 covered all aspects of energy, including solar thermal energy, smart grids, power transmission and distribution, electric vehicles, solar and wind energy, biomass, biofuel, and bioenergy, new energy materials, energy-saving materials, energy storage materials, energy and nanotechnology, energy storage technology, hybrid energy systems, advanced energy technologies, energy generation and conversion, clean coal technology, renewable technology, fuel cells, hydro-energy, geothermal energy.

The Organizing Committee would like to thank all the keynote and invited speakers, the authors who contributed to NEFES 2022, the anonymous reviewers who provided their valuable comments and suggestions, as well as the technical program committee members who devoted their time to the assessment of the papers submitted for publication in the NEFES 2022 proceedings.

Editor

Dr. Grigorios L. Kyriakopoulos

School of Electrical and Computer Engineering, National Technical University of Athens, Greece