Aggregating utility bill data

All energy consumption data related to the BREEAM In-Use Part 2 Energy Calculator must be actual metered data collected in relation to the assessed area. However, where billing dates from different meters within the assessed area cannot be aligned, the following acceptable solution common in the market place can be used. 

Where an asset has a multiple utility meters that bill on different days it is possible to use a pro-rata method to align the billing periods provided that the actual meter readings are undertaken every month, and that the calculations do not extrapolate data over a period longer than one month.