The main problem of the Ecobonus scheme, for condominiums and single unit houses, is the efficiency of the measures. Often, households invest in projects with low energy savings return, such as the replacement of windows and doors alone without implementing any other modification to the heating system or the thermal structure of the building.
The award of incentives should be preceded by a thorough analysis of the efficiency of the projects, and should be dedicated exclusively to renewable energy applications. Nowadays instead, even the latest 110% “superbonus” incentive can be used to invest in heating systems fuelled by fossil fuels like gas.