The Di-Hydro project involves digitizing hydropower plants, to operate them as sustainably as possible and better plan maintenance. IMT, in particular Télécom SudParis, is contributing to the development of a federated platform designed to facilitate secure data-exchange and decision-making, both at the level of each individual plant and collectively. The goal of the Di-Hydro project is to optimize the functioning of hydropower plants at seven pilot sites, located in Greece, Serbia and Italy. This optimization involves digitalizing ordinary operations and maintenance via the Internet of Things (IoT). Various sensors will be installed, to pilot infrastructure and machines as well as monitor biodiversity and water quality in surrounding ecosystems.