PHES Site Selection in Sumatra Island, Indonesia Using an Integrated Spatial Screening and AHP-TOPSIS-Based ApproachWisnugraha Adikaputra Sukandar, Vita Lystianingrum and David Firnando SilalahiE3S Web Conf., 729 (2026) 05002DOI: https://doi.org/10.1051/e3sconf/202672905002