When you run conceptual energy analysis using Autodesk Revit and Project Vasari, some of the most useful results graphs are the heating and cooling loads breakdowns. These results are based on the back-end DOE-2 whole building energy simulations run by Autodesk Green Building Studio.
With Ecotect, you can get a more detailed understanding of energy loads, heat gains, and heat losses. You can analyze the building’s performance without any active systems, so is a good tool for passive design strategies.