What is piezoelectricity? Examples and applications | Repsol

18 Aug.,2025

 

What is piezoelectricity? Examples and applications | Repsol

For some time now, reality has exceeded our fictional imagination; and what was before unimaginable is now real life. And this is occurring with the application of piezoelectricity, a chapter that has significantly developed in the past few decades and that has provided some of the most ground-breaking results with more ideas that in the future could revolutionize the energy sector. 

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Can you imagine walking through the supermarket and that the movement of the shopping cart is what generates enough electricity to light up the building? Or that the movement of the wheels on your car over the road lights up the road signs? And what if traffic lights were powered by the passing of pedestrians over crosswalks or around the city? A commitment to innovation is key for optimizing the uses of piezoelectric materials, and the research continues to advance, mainly by studying the possibilities of generating power from flows of traffic or people.

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If we consider that the piezoelectric effect allows us to generate electricity for free just from movement — by transforming weight or friction into electricity — it's not hard to imagine the possibilities that infrastructure like the metro, roads, or sidewalks could offer in this sense. But, that's not all. In recent years, there have been a series of examples varying in size that use piezoelectricity on all types of surfaces.

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