-- Physics for the -- Physics for the betterment of lifebetterment of life

One step towards One step towards innovationinnovation

Paving slabs Paving slabs harvest harvest kinetic kinetic energy in energy in high footfall high footfall environment environment converting it converting it into into electricityelectricity

Paving slabs glow Paving slabs glow when walked over when walked over indicating to users indicating to users that they have that they have generated energy.generated energy.Only 5% of energy Only 5% of energy produced is used to produced is used to make the slab glow. make the slab glow. The rest of the The rest of the energy can be used energy can be used for other for other application.application.

The paving slab moves The paving slab moves 5 mm from each 5 mm from each footstep. It converts footstep. It converts the kinetic energy to the kinetic energy to electricity that is electricity that is stored within the slab.stored within the slab.

It produces electrical energy using an arrangement of four magnets on a It produces electrical energy using an arrangement of four magnets on a cantilever with a wound coil located in the magnetic field. The magnet size cantilever with a wound coil located in the magnetic field. The magnet size and coil properties are designed to produce energy from low vibration levels and coil properties are designed to produce energy from low vibration levels and the device has been shown to convert most of the power supplied from and the device has been shown to convert most of the power supplied from the environment into useful electrical power. the environment into useful electrical power. The energy is later stored in battery.The energy is later stored in battery.

An average person, weighing 60 kg, will generate An average person, weighing 60 kg, will generate only 0.1 watt in the single second required to take only 0.1 watt in the single second required to take two steps across the tile, but when they are two steps across the tile, but when they are covering a large area of floor space and thousands covering a large area of floor space and thousands of people are stepping or jumping on them, then we of people are stepping or jumping on them, then we can generate significant amounts of power.can generate significant amounts of power.

It can be used at a wide range of places•Crowded places like metro stations, market places, shopping complex etc are ideal for energy production.•Stairs provide a perfect environment for harvesting energy from user’s footstep

•Dance floors can also be a good source of energy production

Just five slabs spread over a lively sidewalk Just five slabs spread over a lively sidewalk has the ability to generate enough energy to has the ability to generate enough energy to illuminate a bus stop throughout the night. But illuminate a bus stop throughout the night. But applications are not limited to the street. applications are not limited to the street. Extended into other public and private spaces Extended into other public and private spaces the system has the potential to power lights, the system has the potential to power lights, computers, automatic doors, refrigerators, computers, automatic doors, refrigerators, shop signs, microwaves… Depending on the shop signs, microwaves… Depending on the usage, the payback period could be as little as usage, the payback period could be as little as one year, and each Pavegen stone has an one year, and each Pavegen stone has an estimated system life of five years of use, or estimated system life of five years of use, or 20 million steps.20 million steps.

So far paving slabs has been tested out in East London and will So far paving slabs has been tested out in East London and will continue onto various destinations in the UK in 2010. If all goes continue onto various destinations in the UK in 2010. If all goes well it will hopefully be jetting off to some of the most trafficked well it will hopefully be jetting off to some of the most trafficked and amazing places all over the world like New York’s Times and amazing places all over the world like New York’s Times Square, the Eiffel Tower or even Disney World.Square, the Eiffel Tower or even Disney World. It can also be used in various busy places in India where lakhs It can also be used in various busy places in India where lakhs of people come and go every day like metro stations, railway of people come and go every day like metro stations, railway stations, airports, busy markets like chandni chowk and sadar stations, airports, busy markets like chandni chowk and sadar bazaar.bazaar. It is future way to stop global warming and it should be adopted It is future way to stop global warming and it should be adopted by various countries.by various countries.

A Presentation by :-A Presentation by :-

Abhishek BajajAbhishek Bajaj

Akshay ChopraAkshay Chopra

Ankit JindalAnkit Jindal

Pulkit NagpalPulkit Nagpal

Siddhant JainSiddhant Jain