Saturday, December 12, 2009

Energy Saving Tips for Computer users

1. Buy energy efficient products

Considering energy efficient products is a good way to save energy in the first place. Look for logos like the Energy Star to buy computer hardware that offers a good energy efficiency. Another good idea is to look for a 80+ power supply unit which is more energy efficient as well.

2. Use build in power saving features

Most operating systems come with power saving features that put hardware like hard drives or the computer monitor into idle mode or turn it off for the time it is not being used. Idle mode consumes between 20 to 50 times less energy. Windows users find the power saving settings in the Control Panel. It might be necessary to tweak the values for turning off the computer monitor, hard drives and setting a system standby time to suit the individual needs. A lower time will save more energy but is also likelier to affect work.

This also includes the possibility to underclock hardware. A high end video card is only needed with its full power when playing the latest computer games. It is definitely not needed in most other situations. Underclocking the video card will save energy

3. Turn down the brightness

Turning down the brightness of the computer monitor, or any other monitor actually, saves energy. This is actually a good tip for users with laptops and other mobile devices including cell phones. It can also be helpful on desktop systems.

4. Turn off the monitor instead of using a screensaver

Screensavers do not save energy. Their function these days is reduced to visuals only. Turning off the computer monitor instead of running screensavers saves lots of energy.

5. Disable devices that are not needed

Laptops come with all sorts of devices that a user might not need. Each of the devices – if enabled – consumes energy. A laptop user that uses the build in network adapter and a cable to connect to the Internet probably does not need Wi-fi, the built-in modem, Bluetooth or infrared. The same might be valid for other devices like the DVD drive or sound card.

6. Turn off the computer

This might be an obvious tip but there are a few myths surrounding this. Some users think that turning off a computer will reduce its lifetime. Others believe that it will cost more power to turn the computer off and on again than to put it to hibernate mode.

It might not make sense to turn off a computer system when going on a 5 minute break but it definitely make sense for longer breaks, e.g. lunch or meetings.

7. Share hardware where appropriate

Hardware like printers, scanners or routers that are connected to a computer system are also using power. A way to save energy is to share these devices where possible. This does require some computer knowledge though.

Energy Saving Verdict: It is possible to save lots of energy by turning off devices when they are not needed. Buying energy efficient hardware and using power saving settings are the two other helpful options.