The general objective of this grant application is to implement energy efficiency measures to reduce CO2 emissions in Câmpina and improve the quality of urban life. The specific objective of Priority Axis 3, Investment Priority 3.1, Operation A – Residential Buildings is to increase energy efficiency in residential buildings, especially those with high energy consumption. By increasing the energy performance of blocks of flats in the short to medium term, the state budget is relieved of expenditure on conventional fuel used, expenditure on maintenance of blocks of flats is reduced, support is provided to economic agents in the field of construction and new jobs are created. By implementing measures to increase energy efficiency, the following objectives are to be achieved: • reducing household heating costs during the winter period, i.e.