Intelligent Systems (ISs) are technologically advanced machines, which perceive and respond to the environment around them. They are usually of various forms ranging from software to hardware. ISs are generally the fusion of Artificial Intelligence (AI), robotics and Internet of things (IoT). In order to strengthen ISs, one of the key technologies is green technology (GT). It refers to the continuously advancing methods and materials, which cover techniques for producing energy to non-toxic cleaning products. It may also be broadened to saving energy, and reducing toxic and waste materials in the environment. The motto of GT can be achieved by using the ISs. In this paper, we present various applications of ISs in GT. Moreover, we discuss various possible solutions using ISs in order to overcome the on-going real-life problems.