ELECTRICITY GENERATION FROM SPEED BREAKER
Advantages:
-Low Budget electricity production
-No obstruction to traffic
-Less floor area
-maintenance is very easy
-multiplexes, malls, toll booths, signals, etc can make use of this system.

It can be used for Charging batteries and using them to light up the streets, etc.

Principle of operation:
Simple conversion from Mechanical energy to Electrical energy.
It Generates electricity using the vehicle weight (potential energy) as input.
The 3 different mechanisms proposed are:
-Roller mechanism
-Crank-shaft mechanism
-Rack- Pinion mechanism: This mechanism is most popularly used. This is because of the disadvantages of other mechanisms:
Crank-shafts are required to be mounted on bearings which creates balancing problem leading to mechanical vibrations which in turn damage the bearings.Secondly as bearings are of sliding type, any occurrence of variable load( which is bit obvious in case of vehicles!!) leads to balancing problem.
In the case of roller mechanism, Maintenance will be very difficult and it Might cause collision.
The Rack-Pinion assembly gives good mounting convenience . Te efficiency is 95% with 3-5% gear losses.

For more, check out this link:
http://aarewahuploads/TechnoCraft/Electrical.ppt
This forum lists some users who have practically done this project with their emails. Just post there for help:
http://cr4.globalspecthread/45233/genera...ed-breaker