Normalization

Normalization incorporates weather sensitivity and calculated heating and cooling degree days to provide a year-over-year (people not from the US might not understand the phrase)comparison of utility consumption.

Weather normalization takes calendarization one step further, where energy use is prorated by day, considering if the meter is weather-sensitive and applies the weather from a selected comparison year to all the utility bills. This removes weather as a variable and lets you compare energy use from year to year and evaluate the impact of your energy conservation efforts.