Abandoning the idea of harmonized energy classes, at least 16% of the public buildings with the worst performances (compared to 2020) will need to be renovated by 2030, and 26% by 2033. For houses, a target of reducing energy consumption by 16% by 2030 and 20-22% by 2035 will apply. This initiative requires interventions such as thermal insulation, window replacement, new condensing boilers, and solar panels