IoT-based Applications Are Becoming More Popular And Provide Effective Solutions For Many Real Time Problems. In This Project, Real-time Monitoring Andprepaid System For Energy Monitoring System Proposed. A Solution Is A Cheap And Easy To Implement And Manage Energy Monitoring System For Our Daily Usage Of Electric Power. In Order To Overcome The Human Errors, Manual Labor And Cost Reducing In Energy Consumption With More Efficiency For The Power Management System, In This Project, We Focus Mainly On IoTprepaid Energy Monitoring. The Proposed Design Is To Implement A Very Low Cost Wireless Sensor Network And Protocol For Smart Energy And Web Application Capable Of Automatically Reading The Unit And Sending The Data Automatically For The Power Users To View Their Current Energy Meter Reading. By Using This System, The Users Will Be Aware Of The Electricity Usage In His/her Home To Reduce The Power Wastage And Cost Of Consumption. And Also We Can Set The Monthly Unit Limit From Web Application To Restrict The Over Usage. The System Consists Of A Digital Energy Meter, ESP8266 Wi-Fi Module And Web Applications For Management System.load Entered Into The Energy Meter And Shown On The Iot.Energy Meter Supplies A Current, And A Current Sensor Measures The Load Before Sending An SMS To The User's Phone. The ESP8266 Wi-Fi Module Will Be Embedded Into The Meter And Implement The TCP/IP Protocol For The Communications Between The Meter And Web Application.