Joining this course presents opportunity to learn about energy harvesting that refers to a technology that converts the energy discarded in our daily lives into useful electrical energy that we can use. As we all know, most of low-power electronics, such as remote sensors, are driven by batteries. However, even when it comes to long-lasting batteries, they face an issue that is a regular replacement. It can turn out to be costly as there are hundreds of sensors in remote locations. Whereas, energy harvesting technologies supply unlimited operating life of low-power equipment and even remove the need to replace batteries where it is costly, unfeasible, or unsafe. The whole sessions cover the concept of energy harvesting technologies, which has gained popularity over the last few years, and thus will be beneficial for those who seeks for understanding principles and their applications.