[BLDG-SIM] When is building energy simulation cost justified

[Habaza11 at cs.com]

Not all simulation software or code compliance tools require extensive installation or expertise. In fact some of these tools help designers in selecting building products ( which they have to do anyway)  while  they make code calculations. We are developing such software to comply with the IECC code, you may try it at;
http://filebox.vt.edu/users/habaza/abacode/index.html
Ultimately, this tool will be similar to any building database such as sweet catalogue web site, but at the same time provides code compliance. 

"Jason Glazer" <jglazer at gard.com> wrote:

>As an advocate of the use of building energy simulation 
>modeling, I have often thought that requiring the use of 
>these tools for buildings that comply with energy codes, 
>like IECC and ASHRAE 90.1, would make sense for certain 
>building types and sizes.  Building simulation often seems 
>to result in significant energy cost savings compared to 
>the cost of the modeling itself.  
>
>In the experience of those on the BLDG-SIM mailing list, 
>under what conditions is the cost of performing the 
>modeling cost justified given the results?  Is it possible 
>to have a simple building size threshold, say 100,000 
>square feet (about 10,000 square meters), that almost 
>always applied to when building energy simulation modeling 
>is cost justified?
>
>Ultimately, I would like to submit change proposals to the 
>major energy code organizations that include such a 
>requirement but I need substantiation. Any suggestions or 
>insights are welcome.
>
>Jason
>
>=========================================================
>Jason Glazer, P.E.  jglazer AT gard DOT com  847 698 5686
>GARD Analytics - http://www.gard.com/
>1028 Busse Highway, Park Ridge, IL 60068
>Building Energy Simulation and Analysis
>Admin of BLDG-SIM list for building simulation users
>
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