The operation aims to transform the existing building complex of the school into a modern sustainable and energy efficient educational space In the current situation the 1st Primary School of N Moudania is excessively energy-intensive and is classified in a low energy efficiency class E To achieve the upgrade the Main Subproject 1 includes extensive upgrading works that include Thermal insulation of buildings to minimize energy losses Replacement of old frames with new high energy efficiency technology Installation of a new modern heating and cooling system Replacement of lighting fixtures with modern LEDs to reduce energy consumption Installation of photovoltaic panels for the production of renewable energy Upon completion of interventions the school complex will be transformed into a sustainable example of educational infrastructure that promotes resource efficiency and circular economy It will significantly reduce energy consumption for heating lighting and cooling while contributing to the reduction of CO2 emissions The use of energy efficient systems and renewable energy sources will enhance the environmental sustainability of the school by offering a healthy and environmentally friendly learning for students and teachers