The Action Energy Upgrade of Lyceum N Triglia aims at the complete upgrade of the building complex of Lyceum N Triglia which currently presents high energy consumption and is classified in a low energy efficiency class D The intervention includes critical works such as thermal insulation replacement of frames and upgrading of heating and cooling systemsThe completion of the Main Subproject will create a sustainable educational building that promotes resource efficiency and circular economy The upgrade will bring about a significant reduction in energy consumption for heating and lighting while at the same time will reduce CO2 emissions through the improvement of energy efficiency and the integration of Renewable Energy Sources of RES such as photovoltaic systems and new energy efficient luminaires.