AUTHOR=Gambarotta Agostino , Kyprianidis Konstantinos , Dimopoulos Eggenschwiler Panayotis TITLE=Editorial: Smart Energy Systems JOURNAL=Frontiers in Mechanical Engineering VOLUME=8 YEAR=2022 URL=https://www.frontiersin.org/journals/mechanical-engineering/articles/10.3389/fmech.2022.854310 DOI=10.3389/fmech.2022.854310 ISSN=2297-3079