As the number of communication devices and the data demands are growing at an exponential rate, awareness of the value of wireless communication gadgets has also tremendously increased. The need for higher agricultural productivity, industrial automation, clean air and clean water, convenient and safe city life, city as well as border surveillance are some burning aspects that call for deployment of multitudes of IoT devices that can automatically collect information and actuate desired control actions.Realization of large-scale deployment and affordable usage hinge upon energy-sustainable operation of these devices. Fast-paced global warming further calls for solutions that will take the mankind to more technology advancement without adversely impacting the environment. It is also possible that, smart usage of the IoT technologies could even aid in reversing the global warming process.In this framework, the SAGE workshop aims to draw together researchers and practitioners engaged in the progress and continued endeavors on such green and energy-sustainable technology solutions. It thus focuses on the energy sustainability aspects of IoT and, in general, on machine-type communications, actuation, and control automation in smart environments, which is a major theme also of 5G+ and 6G technologies. Beyond theoretical proposals, the interest is on technology viability of green and energy-sustainable communication solutions ranging from low-rate telemetric communications to highly-reliable, ultra-low latency, and bandwidth-intensive communications