Recent studies show that the Energy Performance Gap (EPGap), defined as the difference between the estimated and actual energy consumption of a building, is significantly high. This is due to various factors encountered in the different phases of the building life cycle, i.e., inaccuracy of the specifications used in the simulation tools during design phase, poor quality of the on-site practices conducted throughout the construction, inadequate verification of the equipment installed in the building during commissioning phase, and limited analysis of the data collected from the equipment during the operational phase. With the aim of reducing the EPGap, we present an energy management framework defined in the context of an EU-funded H2020 project, HIT2GAP1. The proposed solution provides several services from collecting heterogeneous on-site data, to advanced data analysis and visualization tools designed for the different actors of a building (e.g., building/facility/energy manager, occupants, etc.), for building energy performance optimization. In this paper, we give an overview on the proposed framework architecture and detail its different functionalities, with a particular focus on the solution Core Platform, which is in charge of orchestrating the different components, storing and structuring the data, and providing pre-processing services.
