Comparative Analysis of Electrical Energy Consumption in Buildings with Glass Façades Using 6D BIM: A Case Study of the BRT Electric Center Project

The building sector is a major contributor to global energy consumption, making façade material selection—particularly glazing—a critical factor in reducing cooling and lighting energy demands. The BRT Electric Center Building, which predominantly features a glass façade, therefore requires an appropriate glazing strategy to improve its energy performance. This study aims to compare the electrical energy consumption associated with the use of reflective glass (Stopsol) and tinted glass (Panasap), as well as to evaluate the application of six-dimensional Building Information Modeling (6D BIM) in building energy analysis. A quantitative comparative approach was employed through three-dimensional building modeling using Autodesk Revit integrated with Autodesk Insight. Three glazing scenarios were simulated: clear glass as the baseline, Stopsol glass, and Panasap glass. Energy Use Intensity (EUI), expressed in kWh/m²/year, was used as the primary performance indicator. The results indicate that the clear-glass scenario generated the highest EUI at 240.92 kWh/m²/year. The use of Panasap glass reduced the EUI to 210.90 kWh/m²/year, corresponding to a 12.46% reduction compared with the baseline. Stopsol glass demonstrated the best energy performance, with the lowest EUI of 201.08 kWh/m²/year and an energy reduction of 16.53%. It also maintained relatively consistent performance across different window-to-wall ratio scenarios. These findings suggest that Stopsol glass is the most energy-efficient glazing option among the materials evaluated. Furthermore, the integration of Autodesk Revit and Autodesk Insight within a 6D BIM framework provides an effective approach for assessing façade alternatives and supporting energy-conscious building design decisions.