I have a question about how to use ASHRAE 14's formula for calculating energy savings model uncertainty:
where n and m are "number of observations in the baseline (or pre- retrofit) and the post-ECM periods, respectively"
So if the model is fitted with daily data, should n be 365? If the model is used to compare energy savings over a year, should m be 365? Or should m be 30 if we're comparing the energy savings on a monthly basis?
What about a model based on hourly data? Should n be 24*365 = 8760? What should m be if we use an hourly model?
