Sensor-Based IoT Platform for Real-Time Monitoring and Cloud Visualization of Solar PV Generation and Battery Energy Storage System

A sensor-based IoT platform for real-time monitoring and cloud analytics of a solar PV and battery storage system was designed and a prototype was built and tested. The prototype measured light intensity, voltage, temperature and humidity, uploaded every reading to ThingSpeak and produced live charts and an exportable dataset, replacing manual recording with remote, continuous monitoring. Future work includes adding battery current and temperature channels, completing SoC estimation by Coulomb counting, integrating the STM32 controller and GSM link, calibrating all sensors, and collecting a longer dataset. This dataset can then be used to train ML and DL models for power and irradiance forecasting, panel and sensor fault detection, and battery SoC, SoH and remaining useful life estimation.

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