AUTHOR=Martelli Emanuele , Alobaid Falah TITLE=Editorial: Targeting the Optimal Design and Operational Flexibility of Steam Cycles and Steam Networks JOURNAL=Frontiers in Energy Research VOLUME=Volume 9 - 2021 YEAR=2021 URL=https://www.frontiersin.org/journals/energy-research/articles/10.3389/fenrg.2021.768544 DOI=10.3389/fenrg.2021.768544 ISSN=2296-598X