Presentation at the III International Energy Engineering Congress (iENER 2022) on the next generation of Energy Performance Certificates (EPCs) based on real data to improve the quality, accuracy, reliability and user-friendliness of EPC results. The International Energy Engineering Congress (iENER) has become a national reference event for the exchange of knowledge and experience between the various actors involved in all the fields of action related to energy engineering, such as the integration of renewable energies, near-zero energy buildings, sustainable mobility, smart cities, energy service companies and, in general, the whole wide range of activities and projects aimed at applying energy engineering knowledge.