Energy consumption in Greek school buildings as a function of the climate zone

In this study, the condition of school buildings throughout the Greek territory was analysed, with reference to the typology of the buildings and consequently to the date and the method of construction. Emphasis was placed on the importance of the schoolyard both for the educational process and for the psychology of the students and the contribution to the improvement of thermal comfort conditions in the school premises and in the wider area. The purpose of this study is to investigate the energy status of school buildings that have been energy upgraded in all 4 Climate Zones of Greece by collecting data on energy consumption, construction date, construction method, educational level, and interventions. The research was based on questionnaires completed by users of school buildings to capture the reality of thermal comfort, air quality and energy efficiency after the interventions. Thus, considering the specific climatic conditions of each region, useful conclusions are drawn regarding the efficiency of the interventions and the actions required achieving real energy efficiency. After all, according to an EU directive, public buildings must be converted into zero-energy buildings.