The European Commission has reinforced its solar energy strategy by revising the Energy Performance of Buildings Directive (EPBD), aiming to reach at least 700 GW of installed photovoltaic capacity across the EU by 2030. Under the new rules, all new buildings must be designed to optimise solar energy generation, enabling the integration of photovoltaic and thermal systems without costly structural modifications.

The regulation, which will be phased in from 2026, sets technical and economic criteria to assess the feasibility of solar installations, promoting self-consumption, local storage, and energy sharing.

Solar deployment will extend to residential, commercial, and public buildings, with specific timelines prioritising new constructions and major renovations. From 2027, non-residential buildings over 500 m² must incorporate solar panels during significant works, while public buildings will follow a staggered schedule through to 2031. Generated electricity may be used for lighting, climate control, electric vehicle charging, and other applications, while solar heat will support domestic hot water and heating systems.