My wife and I are in the process of designing our passive solar house and being a tech guy I have been seeking solutions to be able to do energy audits and more specifically thermal modeling. I am not an architect but know a bit about passive solar design.
We are debating getting autodesk's revit product to do our plans so we can use it, or a plugin with it, to generate a thermal model as a proof of concept before we even start work.
Are there any architects or engineers who could recommend a product which might meet our needs? It would be really cool to "model" a lot of "alternative" structures using applications like this as well.