The new electricity tariffs which will be calculated from today will be added to the May bill of electricity consumers and not the April bill, the Ceylon Electricity Board (CEB) said.CEB Chairman W.B. Ganegala clarified that calculating the bill for the next cycle begins today and ends on May 20 and it is in that bill that the new tariffs will be added. He said that the previous bill for electricity consumers which was calculated and prepared between the end of last month and today will not carry the new electricity tariffs. As per the new tariff, the existing Incremental Block Tariff structure has been changed to a Volume-Differentiated Tariff structure for Domestic (D-1) and Religious (R-1) and General -1 (GP-1) customer categories.When the monthly (30 day) consumption of any consumer belonging to the above categories falls within a certain range (block), the relevant tariff for that range will be applicable for the entire monthly consumption, the CEB said. The Public Utilities Commission (PUCSL) had this week approved the new electricity tariff.