HI @mahagh ,
Thanks for sharing the model with me and I should have given some more qualifiers about what could make the simulation take so long. In your case, even though the number of Rooms is small, you have over 2,200 apertures in the model and this will take the E+ solar calculation a long time to compute:
So an hour to run this model in E+ is actually pretty reasonable to me.
If you want to get the model to simulate faster, you can format your model so that you just match the overall aperture area with one window per wall. This model below should run in under 15 minutes and, because the overall aperture area is matched with your original model, the final energy usage should be pretty similar:
I’ll send you the HBJSON via PM.