As a Building Energy Modeling professional, your typical day involves gathering and analyzing building data, constructing simulation models, and running energy performance scenarios. You'll use specialized software to assess factors like HVAC systems, insulation, lighting, and occupancy patterns to recommend efficiency improvements. Most work is done in an office setting, collaborating closely with engineers, architects, and sustainability consultants, though occasional site visits may be required. The role offers opportunities to work on diverse projects, ranging from new construction to retrofits, and often involves presenting findings and recommendations to both technical and non-technical stakeholders.