Presentation outline Abstract Introduction Problem statement Aim and objectives Advantages Applications Methodology Results and discussion Conclusion and recommendation references The concept of prepaid electronic energy meter is introduced in the power sector to effectively monitor the billing faults and minimize losses. The prepaid energy meter is a multipurpose device which can integrate functions like billing and automatic response to user. Energy is very important in our lives today. We need energy to do virtually everything as energy is the stimulus for technology, commercialization and industrialization. Recently owing to raise in number of new housing, commercial and industrial developments in Nigeria, the number of consumers of electricity have been increased in the network distribution. The demand of power is growing at a faster rate than the transmission capacity due to the increase in population growth. To overcome the shortage of power supply, this project provides a solution for managing distribution of power to the consumers by using remote monitoring and control to avoid the power theft and bypass problem. The manual approach to metering and billing has staff moving around physically taking each meter reading and delivering the data to various houses, etc. This is prone to human errors, delays, high operational costs and inaccurate reports. This paper thus seeks to utilize technology to come up with a prototype of a tool which enforces automatic meter reading, timely billing and accurate. Also the issue of power theft is of major concern. The aim is to design, implementation and simulation of prepaid electronic energy meter with bypass detector using arduino and GSM technology and the objectives are: To Implement a telemetering system for efficient metering. To test and validate the designed system so as to ensure proper power metering. To minimize losses Reduce revenue losses To minimize operational cost and frustaration To minimize fight between electricity consumers and staff of electricity providers. Loss reduction Improvement of customer service Decongestion of electricity bill payment Halls Enhancing ease of bill payment Demand control Improved operational efficiencies High accuracy Low cost reliable Schools Industries Homes Business centres Etc. The hardware of Prepaid Energy Meter includes several components such as current sensor, voltage sensor, microcontroller, Liquid Crystal Display (LCD) display, keypad modules, and a GSM modem. These modules are integrated as a system block diagram as shown in Fig. 1 The meter measures the watt per hour and covert to kilo watt per hour to monitor the consumption of the energy and automatically deduct from the recharged unit, when unit exhausted supply terminated until the meter recharge again. The recharge could be via SMS of manually enter by keypad, current sensor detects and converts current to an easily measured output voltage, when user intends to tamper with the meter, the system cutoff the supply automatically until reactivated by the energy provider. The meter is designed to report situations to energy providers via SMS and only authority can activate via SMS. The Arduino was responsible for both capturing the output of both current sensors, and sending the measured data. Arduino software was used to test run the working operation of the circuit and the firmware for efficiently, reducing the time cost and risk of error involved in building circuit prototypes. The proposed meter has the advantage of reducing human errors made when reading meters and processing bills to a large extent. This proposed model can provide a safe, secure, convenient and efficient way to energy measurement calculation, energy billing system and management. This proposed digital prepaid energy meter controlled by GSM based communication is economic and it will promote the cashless policy of the Federal Government of Nigeria. Alauddin A.O., (2011), design and Implementation of secure low cost AMR system using GPRS, International conference on Telecommunication Technology and Application CSIT, vol. 5. Ankit J.,(2011), A Prepaid Meter Using Mobile communication, International Journal of Engineering ,science and Technology vol 3, No.3. Fawzi A. and Bahaa J.,(2010), Prototype Prepaid Electricity Metering system Based on RFID, International Journal of Electronics and Electrical Engineering,vol1.issue1, ISSN-2277-7040. No., pp. 440- 443. Mejbaul H. et al, (2011), ” Microcontroller Based Single Phase Digital Prepaid Energy Meter for Improved Metering and Billing System” Published at International Journal of Power Electronics and Drive System (IJPEDS)Vol.1, No.2, , pp. 139-147, ISSN: 2088-8694. Nazir B. A., (2012), Automation of Residential Electricity cut off using embedded controller, International conference on computer and Information science. Nwaoko K.J. (2006) Electrical Energy accounting methods, pp 30-40, Impressed publishers, Lagos State- Nigeria.