As clean energy technologies gain momentum in addressing global sustainability goals, the Internet of Things (IoT) is shaping the future of sustainable energy systems at the hardware and software level. This article overviews how IoT is supporting clean energy production through real-time monitoring, predictive maintenance, and advanced energy management. Read on to explore the key applications of IoT in clean energy systems, the challenges facing its adoption, and the future prospects for this advanced technology in driving efficiency, reliability, and resilience in the energy sector.