In a noteworthy development within the field of energy innovation, the H-HOPE Project presented its early outcomes, outlining the preliminary design guidelines for a vortex-based energy harvester for water flows at the 36th International Conference on Efficiency, Cost, Optimisation, Simulation, and Environmental Impact of Energy Systems (#ECOS2023). Represented by Alberto Benato, Francesco De Vanna, and Professor Giovanna Cavazzini from the Università degli Studi di Padova, H-HOPE gained visibility through its inclusion in an exhibition during the conference, hosted in Las Palmas de Gran Canaria in June. The project’s involvement contributes to the ongoing dialogue surrounding the effectiveness and environmental considerations of emerging energy systems. Appreciation is extended to the Universidad de Las Palmas de Gran Canaria for organizing the conference, providing a platform for the H-HOPE team to share their early research findings. The prospect of future engagements is anticipated, with a sincere interest in participating in the conference in the coming year. The presentation at ECOS2023 reflects the H-HOPE Project’s commitment to advancing knowledge in the realm of sustainable energy solutions.