Scaling Positive Energy Districts Through Integrated Active Exoskeleton Retrofits: A REC-Driven Application to a Social Housing ClusterRoberto Stasi, Francesca Vecchi, Simona Semeraro, Francesco Ruggiero and Umberto BerardiE3S Web Conf., 710 (2026) 05001DOI: https://doi.org/10.1051/e3sconf/202671005001