In the rapidly advancing landscape of Internet of Things (IoT), Embedded Systems Architecture play a crucial role in enabling the seamless connectivity and intelligent functionality of devices. However, one of the most pressing challenges faced by designers and developers in this domain is the effective management of power consumption. Understanding the intricacies of power consumption in embedded systems is paramount for ensuring optimal performance, longevity, and sustainability of IoT devices. This article delves into the importance of power consumption in embedded systems architectures for IoT, exploring key factors, strategies for efficiency, and the broader impact on the evolving IoT ecosystem.