The object of the project is the implementation of energy upgrading interventions in 7 school buildings of the Municipality of Pavlos Melas. More specifically, the 1st Elementary – 19th Kindergarten of Stavroupoli, the 1st High School of Polihnis, the 1st Elementary School of Stavroupoli (stone), the 3rd High School of Stavroupoli and the buildings of the 6th, 9th and 16th Primary Schools of Stavroupoli are included. The above buildings fall under categories D, E and G of the Buildings’ Energy Efficiency Regulation (KENAK) and require immediate interventions in order to upgrade energy. For each school building there is a combination of tasks that are analysed in a relevant energy upgrade study and depends on the energy data of each building. Such operations shall, where appropriate, include: — Thermal insulation of building shells. — Replace old frames with new airtight synthetics. — Installation of high-performance gas boilers. Replacement of luminaires and fluorescent lamps with new energy saving LEDs. Installation of photovoltaic panels for energy production for own consumption. Following the implementation of the project, the upgrading of these school buildings to KENAK categories B, B+ and A is estimated, while reducing CO2 emissions.