Scientists from AGH University of Science and Technology in Kraków have introduced Poland's first prototype home powered entirely by rooftop solar panels and on-site hydrogen storage. The innovative system, named 'DOM H2,' aims to achieve full energy autonomy for a single-family dwelling. The project was led by an interdisciplinary team at AGH, in collaboration with energy group ZEPAK and engineering firm PAK Serwis. The home generates electricity through a 6.4 kW photovoltaic array installed on the roof of a modified shipping container. Excess power is stored in lithium batteries and used to run an electrolyzer that produces hydrogen from water, which is then stored in tanks. During periods of low sunlight in winter, the stored hydrogen powers a fuel cell to supply electricity and heat to household appliances. The researchers at AGH have set up a laboratory to test the integrated system using standard domestic loads. The concept of the energy-autonomous home has the potential for broader applications, such as in mobile hotels, emergency power setups for events, and quick-deployment units for disaster-response teams. The prototype, 'DOM H2,' was unveiled at the Net Zero Energy & H2POLAND 2025 fair in Poznań, a prominent exhibition focusing on hydrogen technology in central Europe. This development signifies a positive shift towards sustainable housing solutions, emphasizing the utilization of renewable energy sources like solar power and hydrogen storage to enhance residential energy efficiency and independence.