Traditional meters have long been used by utility companies to measure and accordingly bill customers for water,gas and power supplied at homes or enterprises. However, smart power meters help augment Advanced Metering Infrastructure(AMI) by enabling a two way communication between the meter and the central system through either Power Line Carrier(PLC) or wireless modes like Low-power Long Range , ZigBee and Wi-SUN(Smart Utility Network) or even regular Wi-Fi or cellular communication.