An Italian research team has developed a 1 kW-sized solid oxide fuel cell (SOFC) cogenerator designed for use in residential buildings. The researchers emphasized the advantages of SOFC systems over proton exchange membrane (PEM) technology for full-electric buildings, such as nearly zero-energy buildings (NZEBs), due to their high operating temperatures and efficiency. The system, deployed in a single-floor villa in southern Italy, incorporates various renewable energy sources like a rooftop PV system, a solar thermal collector, and a hydrogen storage station. In particular scenarios of photovoltaic production, the system not only meets home electric loads but also feeds surplus energy back to the grid. The research group noted an electrical efficiency of up to 49% and an overall efficiency of 90% at optimal return temperatures. Challenges include the need for skilled labor during deployment, a high start-up time, and the recommendation to operate the FC at nominal conditions. The study, detailed in the International Journal of Hydrogen Energy, involved collaboration between academic institutions and industry specialists.