Pavement Energy Harvesting Systems: State-of-the-Art

Comparing the technologies that make use of vehicle mechanical energy as an energy source, piezoelectric technology was the first to get the attention of researchers. However, due to its lower energy conversion efficiency, the developments with this technology have decreased in the last 2 or 3 years. On the other hand, there has been an increase in research and development of electromechanical systems that harvest vehicle mechanical energy and, using electromagnetic generators, generate electrical energy. These, together with hydraulic systems, have registered the highest energy generation values in experimental tests.
Their installation is also simpler than the installation of piezoelectric devices and they currently present a higher likelihood of success as an effective solution to transform vehicle mechanical energy into electrical energy effectively.

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