As you may know, powertop is used for managing laptop’s power consumption.

PowerTOP shows you the programs which use a lot of energy, while the system is idle. In this article I will show you how to install Powertop on Ubuntu 12.10 Quantal Quetzal via PPA.
This is what you have to do for installing PowerTOP on Ubuntu 12.10:
1. Add the powertop repo:
$ sudo apt-add-repository ppa:izx/bleeding
2. Update system:
$ sudo apt-get update
3. Install PowerTOP:
$ sudo apt-get install powertop