The subject of the project in Věznice Nové Sedlo is the modernisation of the energy economy consisting of the reconstruction of the hot-water heating system and the introduction of a heat recovery system in the technological scheme of forced ventilation of the building L, including the recovery of waste energy from the forced ventilation system and in the hot water boiler room. At the same time, an increase in own resources from the New Green Savings Programme under Article 5 of the EED is requested. The project will be implemented using the EPC method.