The technical, economic and social feasibility of retrofitting zero energy-zero emission solutions to urban buildings in Greece has been studied as part of an EU-funded initiative.
The URBAN RECREATION (Energy efficient retrofit for carbon zero and socio-oriented urban environments) project explored the possibility of retrofitting zero energy and nearly zero emissions in existing real urban environments (RUE). Researchers also studied innovative architectural solutions for achieving nearly zero energy in existing built environments.
Further details: Retrofits for zero energy buildings