Walking is the most common activity in human life.
When a person walks, he loses energy to the road.
This energy can be tapped and converted in the usable form such as in electrical
NEED OF THE SYSTEM
The utilization of waste energy of foot power with human motion is very
important for highly populated countries.
India and China where the roads, railway stations, temples, etc. are all over
crowded and millions of people move around the clock.
AN ALTERNATIVE ENERGY
Footsteps are an untapped
The Challenge – convert
footstep energy to electrical
The Solution – using
The meaning of the word “piezoelectric” implies
“pressure electricity”- the generation of electric field by
Piezoelectricity is observed if a stress is applied to a
solid, like by bending , twisting or squeezing it.
When a pedestrian steps on the top plate of the device, the plate will dip
The downward movement of the plate results in rotation of the shaft of an
electrical alternator fitted in the device.
The pushing power is converted into electricity
The piezoelectric material is fixed at the plane.
The spring is used to return the inclined step in same position by releasing
The shaft of generator is connected to the piezoelectric material. DC is
GYM WORKPLACE 13
Vibration caused from machine in the GYM.
At workplaces piezoelectric crystals are laid
in the chairs for storing energy.
SMART HIGHWAYS 14
Present time we are
using asphalt roads(tar
roads) on which
thousand of vehicles
When a vehicle passes
road deflects vertically
These vibrations are
released as thermal
energy which is being
We have taken the outer ring road of
Hyderabad to compare.
The over all budget of this road is 6700 Cr.
In this 8 lane road of 158 Km. is laid .
If a piezoelectric road is laid………
The budget becomes 6800 Cr. Which is
only1.5% increase in overall budget.
The amount invested
in this returns in just
Average life of
piezoelectric road is
30 years, so income
generated in next 26
years is a profit.
ELECTRIC CAR 18
By using piezoelectric generators in car’s tyres,
below chairs etc. we can generate and store charge
and can use in various car applications.
This is a green solution for power
The centralization of power is minimized.
Even the most untouched and remote areas
can be electrified.
Dependence of thermal electricity is
minimized which in turn save the nature.
Reduces environmental pollution.
Saves more money.
Maintenance of these is a bit difficult .
Constant inspection are to be made.
Can pick up stray voltages in connecting
Crystal is prone to crack if overstressed.
May get affected by long use at high
Simon Langton Grammar
School for Boys – UK
Empire State Building -
World Headquarters – US
Riverdale Country School
No of times load
applied and removed
40 1 5
40 2 10
40 3 15
40 4 20
40 5 25
40 6 30
40 7 35
Testing and results
Piezoelectricity is a revolutionary source for
“ GREEN ENERGY”
Convert the ambient vibration energy surrounding
them into the “ELECTRICAL ENERGY”
This is an excellent alternative to reach the
“ INCRISING DEMAND OF ELECTRICITY”
This technology is tested in “CALIFORNIA” and
“ISRAEL” and approved successfully.
We concluded that it should be implemented in
“INDIA” also to accelerate the development.