This project explores the principle of piezoelectric energy harvesting through a small-scale road model. By embedding piezoelectric discs beneath a simulated surface, mechanical stress from footsteps, weights, or toy car movement is converted into electrical energy. The experiment introduces students to wiring discs in series or parallel, measuring voltage and current outputs, and testing functionality with small devices such as LEDs or buzzers. Through this process, learners develop skills in energy systems, circuitry, and the fundamentals of scalable engineering solutions.
 
Results from the experiment demonstrate how applied pressure directly influences output power, providing insight into efficiency and consistency across the road surface. Optimization through disc placement, elastic layer selection, and load connection highlights challenges in designing real-world systems. By replicating on a small scale, this project illustrates how piezoelectric roads and sidewalks could contribute to sustainable urban energy harvesting, offering a practical introduction to renewable energy technologies in materials science and engineering.