The article discusses how using advanced computer simulations can help design more energy-efficient buildings. By combining Building Information Modeling (BIM) and Building Energy Modeling (BEM), researchers found ways to reduce energy consumption in a residential building in the UAE. They studied factors like building orientation and window design, and discovered that changing the southern facade and using double glazing windows can significantly cut energy use. The study shows that this approach can make buildings more energy and cost-efficient, helping to meet sustainability goals.