The overall objective of the project is to: Increasing energy efficiency at the “Gymnasium School I.D. Sirbu Petrila” Structure “Gymnasium School No. 6” in Petrila City, Hunedoara County. The general objective of the project is underpinned by the specific objective of Priority Axis 3 – Supporting the transition to a low-carbon economy – i.e. increasing energy efficiency in residential buildings, public buildings and public lighting, in particular those with high energy consumption, and Investment Priority 3.1 Supporting energy efficiency, smart energy management and the use of renewable energy in public infrastructure, including public buildings, and in the housing sector, Operation B – Public buildings