One can imagine the large pressure exerted on roads by vehicles running on it. What if that pressure can be brought in use so as to overcome the current energy demand? This can be done by introducing piezoelectric effect in construction of roads and bridges. During the construction, piezoelectric materials along with piezoelectric transducers acting as DC nanogenerators are placed under the tiles strong enough to bare the pressure applied by the vehicles. There is also a motor placed inside it which access the high voltage generated by the plates due to pressure and use it not only to light up the street lights but also can act as a great source of energy which can be widely used further. This idea can also be implemented on the dance floors of the clubs, benches of schools, chairs of any public places and even on the beds for small power generation.
So, Piezoelectricity can be very useful to satisfy the increasing demand of the people and the interesting fact about this is that it is renewable and eco-friendly.