Energy Related Costs, Annualized
Our company is doing analysis on different products (i.e. different wall configurations where we are just changing 'wood stud', 'wall sheathing', and 'air leakage' parameters). Therefore, we are just creating separate cases and not using the parametric function because there are too many outputs, and not using the optimization function because it isn't really applicable for this exercise.
When I run a simulation with Analysis=design and Reference=My design, I get an output of ('energy related costs, annualized' = 801USD, and 'CO2 emissions'=4.59 metric tons/yr).
However, when I run this same case against a different reference, I get an output of ('energy related costs, annualized'=951USD & 'CO2 emissions' = 4.59 metric tons/yr) for the same analysis=design, and the reference=user defined (a lower performing envelope) is ('reference = my design' is 'Energy Related Costs' =822USD & 'CO2 Emissions' = 4.68 (Metric tons/yr).
MY QUESTION: When I compare 'analysis' to itself (i.e. a pure simulation) I get one output for, but when I compare 'analysis' to a different 'reference', I get another output with the same parameters for that same configuration being analyzed. Why does this change?
Can you email your project file to beopt@nrel.gov?
I just sent it. You can give me a call on my cell phone on signature line to discuss. -Thank you