gnome-power-manager software package provides power management tool for the GNOME desktop, you can install in your Debian 7 (Wheezy) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install gnome-power-manager
gnome-power-manager is installed in your system.
Make ensure the gnome-power-manager package were installed using the commands given below,
$ sudo dpkg-query -l | grep gnome-power-manager *
You will get with gnome-power-manager package name, version, architecture and description in a table
| Distro | Debian 7 wheezy |
| Section | GNOME |
| Package | gnome-power-manager |
| Version | 3.4.0-2 |
| Description | power management tool for the GNOME desktop |
| Sub Section | GNOME |