Saving Electricity and the Environment: Energy Saver
Like many of the system preferences panes you've seen in this chapter, the contents of the Energy Saver pane varies with the hardware. In short, this is the pane where you can set sleep and wake options as well as set up a startup or sleep schedule. The desktop version of the pane has just the Sleep and Options sections. The laptop version also includes settings for the type of power and optimization settings.
Note that administrative privileges are required to make changes to this pane.
Choosing Preset Energy Settings
For a laptop, you can configure settings for a power adapter or the battery. When set to the power adapter, the preset energy settings are better energy savings, normal, better ...
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