EaZy is a mobile-first smart prepaid electricity management system designed for rental and self-use properties. The application is developed in Flutter and separates users into Owner and Tenant roles. An Owner can create properties, generate joining codes, approve or remove Tenants, monitor electricity information, review contributions and reports, and manually control the property’s supply. A Tenant can join an approved rental property, view live usage and shared credit, top up a personal wallet, transfer funds into the property’s shared electricity credit, receive notifications, and review transaction and consumption records.

In the proposed full architecture, a PZEM-004T energy-monitoring module and current transformer measure voltage, current, active power, energy, frequency, and power factor. An ESP32 transmits the readings through Wi-Fi to Firebase services. EaZy calculates electricity cost from measured energy and the configured tariff, then deducts the cost from the shared property credit. Low-credit alerts are triggered at 30% and 10%. When the balance reaches zero, the backend sends a control command through an isolated relay driver and contactor to disconnect the test load. Supply is restored after sufficient credit is transferred into the property balance, unless the Owner has applied a separate manual stop. Self-use properties retain monitoring and reporting without prepaid deduction or automatic cut-off.

Historical readings are intended to support AI-based usage forecasting, abnormal-usage detection, credit-depletion estimation, and energy-saving recommendations. The current FYP I prototype implements the Owner and Tenant application flows using local simulated data, including property and Tenant management, wallet transfer, usage-based credit deduction, alerts, supply-state changes, monitoring, notifications, and reports. Physical metering, Firebase synchronization, payment processing, push notifications, relay/contactor control, and evaluated AI models are planned for the next integration stage.