Smart Watt-IoT Solution for Electricity Usage Monitoring

The Internet of Things (IoT) has changed traditional power monitoring systems into smart, connected platforms that offer real-time data and automation. This paper introduces an IoT-based Smart Energy Monitoring and Consumption System that tracks electricity use by individual appliances in a home. The system uses a non-invasive current transformer (WCS1800-1147) and a voltage sensing circuit based on the LM358, connected to an ESP32 microcontroller for collecting and processing data. A 16x2 LCD screen with an I2C interface shows the data locally, while Wi-Fi allows the system to connect to the cloud for remote monitoring and analysis. The system's accuracy is checked using the Meco Power Guard PG09 portable power meter as a reference. A major part of the system is a context-aware chatbot that uses real-time energy usage and environmental data to give helpful suggestions, encouraging more energy-efficient habits. The solution uses affordable hardware, cloud-based analysis, and conversational AI to help manage energy use proactively, lower electricity bills, and support sustainable energy use in homes.