AUTHOR=Yu Hao , Bai Linquan , Zhou Yue , Zhang Shenxi , Zhang Rufeng TITLE=Editorial: Integration and digitalization of urban energy systems JOURNAL=Frontiers in Energy Research VOLUME=10 YEAR=2023 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2022.1027434 DOI=10.3389/fenrg.2022.1027434 ISSN=2296-598X