In the Business Intelligence modul you can filter the logged data by time period. 1st step: Select the variable to show in RDLC report. 2nd step: Click on the next button till the "Requisite variable" form appears. 3rd step: Set the operand A as "Time Period" ... example: 4th step: Set the operation to "between" 5th step: Set the Operand B than the Operand A. (Example: 14:00) 6th step: Add the requisite to the list 7th step: Click on the Finish button and the variable appears in the list. After the previous 7 steps we have a variable what will contains the values from 10:00 to 14:00. If we create another variables that contains the daily consumption and another period we can compare the consumptions to each other.