Piezoelectric-Based Energy Harvesting Technology for Roadway Sustainability

The benefits of a roadway energy harvesting system are potentially great, given the lane-miles and high traffic volume in specific areas of state highways. A piezoelectric method of energy harvesting has advantages over other alternative sources, such as solar panels and wind power. The primary goal of this research project is to prove that the piezoelectric method is a viable alternative energy source for roadways. The scope of the research project includes investigation of the energy harvesting method, a feasibility study, the framework of the piezoelectric method, preparation of equipment and materials, conduction of lab experiments, and development of potential design using piezoelectric materials. The lab experiment is to identify magnitude of energy harvesting with piezoelectric materials under asphalt pavements. Preliminary research results indicate that the levelized cost of energy (LCOE) is relatively high, but potential energy generation can be improved by several variables. Thus, there is an urgent need to conduct studies regarding this technology in laboratory conditions with available products in the U.S. Currently, research framework, equipment, hypothesis, and statistical experimental design are prepared to conduct the research. The results of this research project will contribute to the possibility of highways’ self-supporting energy capacity. The amount of generating capacity will be recorded and compared with other energy harvesting methods to determine economic competitiveness.