Identification of criteria for the selection of buildings with elevated energy saving potentials from hydraulic balancing-methodology and case study

Hydraulic balancing is key to ensure proper operation of the heating system. When system not hydraulically balanced, heat unevenly distributed across dwellings resulting in a wide temperature spread, overheating, and consequently, wastage energy. In this paper, we study which extent hydraulic imbalance affects thermal energy demand buildings. Furthermore, variables interactions that influence performance buildings are identified. first part, dataset, including building features, boiler capacity consumption 49 multifamily Geneva (Switzerland), analysed. Applying regularization regression, find higher variation indoor leads larger consumption. Buildings constructed before 1980, having large heated floor area, more likely be imbalanced consume energy, indicating saving potential from balancing. The second part consists case four where was implemented. We monitor data associated with levels significantly reduces spread avoiding overheating. yearly savings by at an outdoor 0°C estimated 9% Geneva.