Perspective Chapter: Wearable Energy Harvesting for Personal Navigation

Energy harvesting technologies are driving sustainable innovations across various domains, from wearable devices to advanced satellite positioning systems. This chapter highlights transformative projects showcasing the potential of energy harvesting. The energy harvesting combat boot exemplifies the ability to convert kinetic energy from human motion into electrical power, enabling operations such as satellite positioning without external batteries. Advanced wearable devices, including global positioning system (GPS)-integrated systems, illustrate how energy harvesting supports efficient navigation and tracking. Emerging methods like triboelectric and piezoelectric harvesters, alongside cutting-edge materials such as carbon nanotubes, demonstrate scalable solutions for low-power applications. Innovations in satellite energy systems, such as thermoelectric generators and hybrid designs, further extend the versatility of energy harvesting by converting ambient energy into usable power for communication and navigation. Despite challenges like intermittent energy sources and integration complexities, these advancements underscore the critical role of energy harvesting in achieving autonomy, efficiency, and environmental sustainability.