Greek Energy Communities: Maintaining a project’s sustainability within the context of energy exchangeSofia Yfanti, Marios Nikologiannis, George Viskadouros, Marini Markaki, Stavros Iltsidis and Emmanuel KarapidakisE3S Web Conf., 638 (2025) 02012DOI: https://doi.org/10.1051/e3sconf/202563802012