Weather-normalized and non-normalized source EUI(kBtu) are very similar distribution and to make better objective modeling, weather normalized source EUI is selected for further analysis.
The two distribution is tested on KS test against normal distribution and the P-values are zero so the two histograms are not considered as a normal distribution.
Current benchmark model at NYC is energy star so running regression model of log source EUI and energy star would give an insight of current benchmark performance.