The EM341-4 Smart G is a highly efficient electric energy metering system upgradeable to support the latest wireless M-Bus technology, to communicate with a Customer Interface Unit (CIU). The EM341-4 Smart G benefits from the RFID technology which allows a two-way communication path between the utility company and the consumer. Various forms of information and data can be transferred securely via the RFID card(s) including but not limited to customer data, meter configuration and monthly consumption. Furthermore the meter is upgradeable to support a direct communication path between the consumer and the utility company without the use of meter readers, money collectors or vending stations via an AMM interface, hence reducing operational expenditure to the utility company and saving time for the consumer.