They may undersize because they are not the design
conditions --- only the extremes of the weather file. And if
the weather files are "typical" as most are, then they won't
represent the real "extremes" of the location.
At 06:30 AM 7/21/2009, craig_s_simmons wrote:
I would be cautious about using
SummerExtreme and WinterExtreme if you are using the simulations for
sizing. I have found that they tend to under-size.