Paving slabs that harvest kinetic energy from footsteps can generate electricity. When walked on, the slabs glow to indicate energy generation to users. Only 5% of the energy is used for this display; the rest is stored in batteries. The slabs convert footstep vibrations into electricity using magnets and coils. While an individual generates little power, many people in busy areas like metro stations can generate significant amounts. The energy can be used to power lights and small appliances. Testing in London has been successful and the technology may be implemented in other busy areas around the world.

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

2. One step towardsOne step towards
innovationinnovation

3. Paving slabsPaving slabs
harvestharvest
kinetickinetic
energy inenergy in
high footfallhigh footfall
environmentenvironment
converting itconverting it
intointo
electricityelectricity

4. Paving slabs glowPaving slabs glow
when walked overwhen walked over
indicating to usersindicating to users
that they havethat they have
generated energy.generated energy.
Only 5% of energyOnly 5% of energy
produced is used toproduced is used to
make the slab glow.make the slab glow.
The rest of theThe rest of the
energy can be usedenergy can be used
for otherfor other
application.application.

5. The paving slab movesThe paving slab moves
5 mm from each5 mm from each
footstep. It convertsfootstep. It converts
the kinetic energy tothe kinetic energy to
electricity that iselectricity that is
stored within the slab.stored within the slab.
It produces electrical energy using an arrangement of four magnets on aIt produces electrical energy using an arrangement of four magnets on a
cantilever with a wound coil located in the magnetic field. The magnet sizecantilever with a wound coil located in the magnetic field. The magnet size
and coil properties are designed to produce energy from low vibration levelsand coil properties are designed to produce energy from low vibration levels
and the device has been shown to convert most of the power supplied fromand 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.

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

7. 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

8. Just five slabs spread over a lively sidewalkJust five slabs spread over a lively sidewalk
has the ability to generate enough energy tohas the ability to generate enough energy to
illuminate a bus stop throughout the night. Butilluminate 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 spacesExtended 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 theshop signs, microwaves… Depending on the
usage, the payback period could be as little asusage, the payback period could be as little as
one year, and each Pavegen stone has anone year, and each Pavegen stone has an
estimated system life of five years of use, orestimated system life of five years of use, or
20 million steps.20 million steps.

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

11. A Presentation by :-A Presentation by :-
Abhishek BajajAbhishek Bajaj
Akshay ChopraAkshay Chopra
Ankit JindalAnkit Jindal
Pulkit NagpalPulkit Nagpal
Siddhant JainSiddhant Jain