Solar Meilleur is a solar power plant monitoring system that uses IoT, AI, and weather satellite imagery to provide real-time monitoring and future predictions of solar power output. Its "Solar TAMAGO" IoT device captures whole-sky images for AI analysis to predict solar radiation and power output from 5 minutes to 3 days later. The system also provides real-time whole-sky images of the sky above the solar power plant, which, combined with AI analytics, outputs proprietary weather indicators that represent the current amount of output power. Solar Meilleur aims to achieve efficient operation and maintenance, fully utilize solar power, and ensure a stable supply of electricity. By detecting changes in weather conditions, Solar Meilleur can predict changes in current power generation.