Da3dalus wrote:A harbinger of a thread here... They concluded in 2006 that energy modeling was going to be critical, with Green Building Studio and Ecotect. Now both are owned by Autodesk! Lord have mercy!
Don't dispair! ArchiCAD could do most of the energy modeling that building designers need. Specialist analysis software will always be essential for complex buildings but for my area of interest, housing, I have been using ArchiCAD to develop code compliance solutions for several years, which, to get back to the original thread, has helped to get new work.
I am working on an Addon for ArchiCAD that should be available in the UK in the next few months to automatically estimate SAP and CSH energy ratings, which includes fabric and ventilation heatosses, energy generated by PV and solar thermal, solar gain and CO2 emissions.
There are problems with using solutions like Green Building Studio and Ecotect in conjunction with ArchiCAD and Revit:
The main issue globally is that there are no international standards for assesment, so although a test run in GBS can provide interesting information, it will not provide code compliance testing even in the US:
GBS website states: "The web service is useful for assessing goal viability for the first LEED charrette; however, it is not a compliance tool and does not produce the required LEED submittal documentation. It is intended for use early in the process when design changes are conceptually easy to make.
The other main problem is that although GBS and Ecotect claim to make it easy to test the design at an early stage, the process of creating and exporting gbXML files to another piece of software ( requiring further software knowledge) and repeating the process is far from immediate and intuitive, just when critical decisions about window sizes and positions, wall constructions etc are made.
Surely the best solution is to have immediate feedback throughout the design process so the effect of every design decision is understood. That is why BIM should have energy analysis built in and what we are working to deliver with the HEATA Addon.