There are power management features on newer computers. Older computers may have had them but they can’t compare to Windows XP, Vista and especially Windows 7.
How much can you save?
Just by enabling the power management features you can save as much as 400kWh (Kilowatt Hours) of electricity and $44 in energy costs annually. Needless to say you save money and it has less impact on our environment.
Use your computer and monitor power management features
You can place both Windows and Macintosh systems, as well as other components, into a low-power “sleep mode” after a period of activity. All you have to do is touch the mouse to wake up the computer and monitor. This normally only takes seconds.
Rethink screen savers
Screen savers are no longer needed on modern monitors. Studies have shown they consume more energy than if it isn’t running. Either turn off the monitor or let it go into sleep mode.
Turn down the brightness settings on your monitor. The brightest setting consumes twice the power used by letting it go into sleep mode.
Close unused applications
Many computer games and third-party software packages that run in the background will not allow the computer to go to sleep. This is true even if you paused in the active window.
Turn off peripherals such as printers, scanners and speakers when not in use.
Fight phantom power
Plug all your electronics into one power strip. and turn the strip off when you are finished using your computer. Unplug the strip (if possible) during storms to prevent possible lightning strikes. If you have items such as phones put them on a separate power strip. Be sure your power strip is a surge suppressor. This will keep it as safe as it can be when there is a surge in the electricity.
Use a power meter
WHAT? I know you would never think of this. I feel it is important to know how much energy your computer consumes. You can calculate your savings in this manner. Check with your power company to obtain this item. Some libraries have them also.