Piezoelectric energy harvesting is a technology that converts mechanical energy from vibrations or pressure into electrical energy. This process occurs in materials that exhibit the piezoelectric effect, where applying stress generates an electric charge. Common applications include powering small devices, sensors, and wearables. The harvested energy can be used in various settings, such as in smart buildings or wearable technology, where movement or environmental vibrations can be captured. This method offers a sustainable way to generate power without relying on batteries, making it an attractive option for low-power applications.