The project is aimed at testing a new business model consisting of innovative metrics for assessing the profitability of energy investments, through the provision of a service for identifying retrofit interventions with a related web application. The latter allows, on the one hand, the company providing the service to market it, and on the other, the end user to easily understand the impact of the service on the building through a user-friendly graphical interface (even for a non-expert in the energy field).