The aim of the project is to reduce the energy performance of Hall No.4 of Mladá Boleslav Hospital. A set of energy-saving measures will be implemented: — Insulated roof and machinery spaces- Reconstruction of lighting- Introduction of principles of energy management.Realisation of the project will achieve total input energy savings of 513.9 GJ/year, i.e. 22 %, reduction of CO2 emissions by 84.7 tonnes/year, i.e. 24.6 %.