bSI Technical Report: BIM & Building Energy Modelling (BEM) Workflows and Data Interoperability

Almost 40 percent of total global CO₂ emissions are caused by various contributors in the built asset industry, a majority of which (80%) comes from existing buildings with poorly designed, constructed, and/or maintained envelopes. In the EU alone, 36% of total greenhouse gas emissions come from buildings, a majority of which (75%) are not designed to effective energy efficiency standards. buildingSMART International (bSI) is convinced that digital ways of working combined with open standards and advanced model-centric tools and workflows can make valuable contributions to sustainability and resource conservation in the construction industry. To address and bring the domains of building information modelling (BIM) and building energy modelling (BEM) together, a bSI Technical Report was developed to lay the groundwork for finding practical, open, standardized solutions for getting the right information into the right hands at the right time.