Buildings use a lot of energy and contribute to climate change. Scientists created a model to measure how efficient buildings are at using energy. They tested the model on a smart industrial building and found it didn't match the actual energy use at first. By adjusting the model, they were able to make it more accurate. They also used a new method to further improve the model. The updated model showed a big difference in energy use compared to the original one. The new model is better at predicting how much energy a building will use.