OSM model of the commercial building I am working on gave me zone wise results which on comparison with actual data recorded gave huge gaps. I have added loads and weather conditions and was expecting the profiles to be similar with less than 20% gaps. However, my zone cooling energy are not varying from winter to summer for Orlando-Florida. I have attached one zone comparison here. Can someone help me out nailing the error in my model.
I did the same model on HAP and was able to get reasonable results. OSM gives me more flexibility so I move to OS. But now can't figure out where the issues is. The flatter curve is from OS model whereas the peak profile is from actual field data.