Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
Revit Energy analysis is meant for early decision making in conceptual design phase. It is very useful to make fast energy models and envelope parameters sensitivity analysis. Both inputs and outputs are very limited to this early analysis stage. It is current not possible to model custom schedules, loads, HVAC and other advanced features. Opensutdio is detailed energy analysis tool. Highly customizable and very complex. It depends what's your goal. I use both in my modelling process. I do early analysis with mass models and then model detailed geometry in Revit. I then export the gbxml model to Openstudio to continue adding detail in Openstudio (and idfEditor). If you have no experience in Energy Modelling I would suggest starting with Revit and then Openstudio after some flying hours.
Good luck.
