[EnergyPlus_Support] Effect of minimal HVAC loads on simulation results

["c_l_hailey" <c_l_hailey@xxxxxxxxx>]

I have been doing some research into the accuracy of simulation 
programs on more innovative buildings.  Particularly, well-build 
residential buildings with A LOT of passive solar design 
incorporated, therefore requiring a minimal amount of mechanical 
HVAC.  These simulations seem to have exceptionally high margin of 
error when compared to theactual energy consumption.  Do you know if 
there is any relationship?  Does EnergyPlus not respond well to 
buildings with a HVAC system which only consumes say 30% of the 
structures energy?  

BTW - I am not very experienced with modeling, so I cannot tell you 
if there is error in the inputs of the models I am looking at.

Thanks

Hailey


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