International Research Journal Of Engineering And Technology (IRJET) E-ISSN: 2395-0056 Volume: 09 Issue: 12 | Dec 2022 Www.Irjet.Net P-ISSN: 2395-0072 © 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 647 ENERGY GENERATION VIA FOOTSTEPS USING PIEZOELECTRIC SENSOR Priyanka Bhatele,Shubham Mali, Atharv Mali, Mahi Chrungoo, Adwait Mali, Rishikesh Makode Department of Engineering, Sciences and Humanities (DESH) Vishwakarma Institute of Technology, Pune, 411037, Maharashtra, India -----------------------------------------------------------------------------***------------------------------------------------------------------------ Abstract — . Electricity is becoming a vital part of our life and that's why power generation has also become important. As we know generation of electricity can be done in numerous ways. One of the ways is to convert mechanical energy from vibration in human motion into electrical energy, which is a non-fossil fuel driven sustainable form of energy. A system has been devised in which numerous piezoelectric sensors convert mechanical energy from pressure applied on them into energy which is stored in a battery inside the soul of the shoe. outside of the shoe consists of an USB port through which we can connect our mobile phones after returning home ,our shoe thus acts as a power bank. This is thus a renewable form of energy and a sustainable future use solution. Keywords — Green Energy, piezoelectric energy generation, renewable energy, mechanical to electrical conversion I. INTRODUCTION Considering the expected endangerment of non renewable resources in near future , it is important to sustain to renewable forms , a lot of human energy is wasted in human locomotion in form of vibration , or heat and other forms .When human walk some force exerts on surface of shoe which can be used to generation of electricity. This can be done by using piezoelectric sensors. A)PIEZOELECTRIC EFFECT When pressure or stress is applied on the piezoelectric materials a small amount of voltage or electric potential is generated this is nothing but piezoelectric effect So we can generate the electricity by this piezoelectric effect..Common piezoelectric materials include lead zirconate titanate (PZT), barium titanate, and lead titanate In other materials like metals , we can see the symmetrical structure of a unit cell but in this case it is not true. Normally, we can see electrically neutral behavior of the piezoelectric crystals l:no symmetry in the arrangement of the atoms can be seen but this is not the case about the electrical charges. Cancelation of positive charge to the negative can be seen inside these crystals. But by applying the pressure on the crystal structure of the respective get disturbed ,so net movement of positive and negative charge will be happened due to deformation and net electric charge will be produced. This effect when happens across the whole structure ,causes net positive and negative charges to appear. Electrical polarization corresponds to the change in positive and negative charges creating a peripheral electric field. The applied force in the material creates the development of potential differences in the materials. This concept is even termed as the direct piezoelectric effect. The other scenario that has to be noted is that this effect is reversible which means that the result will be electrical deformations in the material by applying the electric field is called a reverse piezoelectric effect. B)LITERATURE REVIEW There have been previous methods of generation of electricity via piezo sensors.In the research done by Fernandes M. et al[1] ,involved transfer of voltage generated by the piezo sensors to a bridge rectifier circuit to a Protection circuit which comprised of Reed Relay as the main component, along with 2 LEDs (Red and Green) for