Building energy modeling is a way to predict how much energy a building will use. This study looked at using BIM software to create accurate models. The researchers found that most programs consider things like how people use the building, materials used, and systems like heating and lighting. However, they also found that the impact of thermal mass and active energy systems is not well understood. The researchers developed a new method to model building energy using BIM software and tested it with water flow glazing. They also looked at how data can be shared between different software programs.