Emoncms is an open-source web-based application designed for processing, logging, and visualizing energy, temperature, and other environmental data. Developed primarily for use with the OpenEnergyMonitor system, it allows users to collect data from various sources such as smart meters, renewable energy installations, and sensors, and then analyze and display this information through customizable dashboards and feeds. Emoncms supports real-time data input, historical data archiving, and offers a range of tools and plugins to facilitate data processing, making it a versatile platform for monitoring and managing energy consumption and generation in homes, businesses, and community projects.

With its modular architecture, Emoncms is highly adaptable, allowing users to extend its functionality according to their needs. The platform supports multiple data input methods, including MQTT, HTTP, and direct logging, and provides APIs for integration with other systems. Its open-source nature ensures a strong community support and continuous development, making it an ideal solution for individuals and organizations seeking a reliable, transparent, and customizable energy monitoring system to promote energy efficiency and sustainability.