Smart Energy Meter with Analytical Insights
Keywords:
AC/DC measurement, Energy monitoring, Hybrid power system, Solar energy simulation, Sustainable energyAbstract
This paper presents the design and implementation of an energy monitoring system for hybrid power setups, aimed at tracking both AC and DC energy consumption with integrated solar energy simulation. The system is built around the ESP32 microcontroller, utilizing three PZEM-004T sensors for AC measurement and two INA226 sensors for DC monitoring from a Switched-Mode Power Supply (SMPS) and an Uninterruptible Power Supply (UPS). The SMPS simulates solar energy generation, enabling differential billing through discounted energy rates. A derived battery energy metric enhances monitoring precision.
Local visualization is achieved using a 20×4 LCD, while a browser-accessible web interface provides real-time energy data, usage insights (daily, monthly, yearly), and MQTT configuration for remote data transmission. Data logging is managed via the ESP32’s LittleFS file system. MQTT integration ensures compatibility with external platforms, and real-time data visualization is facilitated through Node-RED dashboards. These dashboards offer both simplified metrics for general users and detailed analytics for technical stakeholders.
The system supports dynamic billing by distinguishing between conventional and simulated renewable energy usage. Predictive forecasting aids in optimizing energy utilization. By promoting efficient energy management and solar energy simulation, this paper aligns with the United Nations Sustainable Development Goal of ensuring access to affordable, reliable, sustainable, and modern energy for all, specifically targeting increased renewable energy adoption and enhanced energy efficiency.
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