A Data Structure for Digital Building Logbooks: Achieving Energy Efficiency, Sustainability, and Smartness in Buildings across the EU

The European Commission has mandated the use of digital building logbooks (DBL) to encourage deep energy renovations and overcome barriers in building renovations. The current energy performance certificates (EPCs) focus on operational energy consumption, whereas the DBL will cover the entire life cycle of buildings and provide a more comprehensive evaluation of buildings, through providing a passport rating in three domains: energy performance, sustainability, and smartness. This paper defines the digital building logbook (DBL) data structure within the context of the EUB SuperHub, a three-year project financed by the European Union under the Horizon 2020 program. The creation of the EUB SuperHub DBL data structure involved an extensive review of relevant literature, including existing DBL data structures developed in previous EU projects (iBRoad, ALDREN, BIM4EEB, X-tendo), recommendations from the “Study on the Development of an EU Framework for Buildings’ Digital Logbook”, requirements specified in the grant agreement, existing EU legislation, and anticipated future legislation. The proposed digital building logbook data structure for the EUB SuperHub project comprises eight primary categories and is designed to provide all the essential input data needed throughout the building’s life cycle to compute the passport rating across three domains: energy efficiency, sustainability, and smartness. With the requirements stipulated in existing and soon-to-be-adopted EU legislation, the introduction of a digital building logbook has become a necessity. Though the undertaking is a formidable task and will require considerable effort, its benefits are numerous and promising, including the potential to enhance energy renovation rates.

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