Abstract: Every year, 16.9 million flights take place from all over the world. During the flight, each of these planes produces a huge amount of waste heat due to using fossil energy. This waste heat is produced as a compulsory outcome of energy- using machines and engines. As we all know, fossil fuels account for 70% of the energy produced worldwide, and this production generates a significant amount of waste energy. This means that 35–45% of the energy in fossil fuels results in electric power, and the rest becomes heat. In order to improve aircraft efficiency, my goal is to convert the waste energy released by an aircraft's engine into electricity.