Revit does not allow you to connect electrical loads across multiple models. This becomes problematic when you are working on a campus with multiple buildings that all connect up to a Central Utilities Plant (CUP). This is also problematic on larger 1 million sf + buildings. Every trade and broken their model into 3 models to reduce size, but Electrical is stuck with one giant model because we can't split the electrical loads and link them through all 3 models. For the electrical simulation to work in Revit, everything needs to live in the same model. The only workaround is creating dummy loads that represent the loads from the other models, but you have to manually update those loads and its almost impossible to get the load classification to all match up with correct loads, it means you have a dummy load (per circuit) and then (per load classification) on those circuits. Can you imagine doing this on 400 panels that all have a minimum of 42 circuits? That is 12,800 circuits that Autodesk is asking us to manually update across a single project. This is by far the #1 issue that is slowing our projects down. Large sizes equal slow Revit speeds, and now we are left with 1hr + load times for several of our projects that contain 57 Revit links or more. If we could split our model into 3, it would reduce the linked model size by 1/3 and our model speed would increase significantly. Autodesk needs to make this the #1 priority for Electrical! If you are reading this Autodesk I would love to give you a demo in one of our models!
