Energy is the essential requirement of today\'s life. Due to the diminution of the energy sources, we need to develop the device which can harvest the wasted energy existing in our ambient environment. Triboelectric nanogenerator (TENG) was developed as an innovative paradigm for energy harvesting, which can harvest various forms of mechanical energy that exist in our day to day life, including vibrations, walking, ocean waves, human motions, raindrops, flowing water, a moving automobile, wind, rotation energy and mechanical triggering. Triboelectric nanogenerator (TENG) is a novel energy harvesting device to convert mechanical energy into electricity based on triboelectric principle. This paper reports triboelectricnanogenerator for efficiently harvesting electrical energy from the rotational motion of the robot\'s wheel, also paper works on designing robot\'s circuit does not need any external reference battery using a piezoelectric startup circuit. However, as the availability of harvest energy source is intermittent, there is a need to devise a backup power system so as to be able to store the electricity produced by nanogenerator and thereby have a readily available source of energy at all times. This paper analyzes and presents a concise review of renewable & harvesting energy technology, especially in robotics, and learn more about how to incorporate the right mobile robot power source, and seeks to demonstrate that renewable energy storage solution can be attached and stored.