Computers are wasting energy.

Of the $US250 billion spent per year on powering computers worldwide, only about 15% of that power is spent computing-the rest is wasted idling.

If the sheer, skyrocketing cost of electricity isn't enough to make you start looking to reduce your power bill, then maybe a reminder that electricity = fossil fuels burned = more carbon emissions = global warming will remind you that there's more than just a large electricity bill at stake here.

Here is computer power management tip

Youc can keeps your computer on for easy remote access and for nightly scheduled tasks (like backups and defrags), but didn't want to waste the energy an always-on computer would. Search for network setup that uses power-saving settings and Wake on LAN technology to get both energy efficiency AND constant availability. This estimates this new setup saves you almost $200 a year in energy bills and reduces your carbon emissions by 234lbs (!!). Here's how you i did it :

I used the open source DD-WRT firmware to set up a wireless bridge between my access point and my PC which is in another room. That allowed me to use Wake On LAN (WOL) to power up my computer remotely. I then changed the settings in my computer's BIOS and in Windows to allow WOL to start my computer from whatever state it was in. Lastly I used a BIOS setting to power my computer on every night at 3AM for scheduled maintenance tasks.