Skip to content

Get involved


Switching off light

Simple steps to reduce your energy consumption at work

Switch OFF

  • Switch off your PC monitor when not in use, for example when you go to meetings or for lunch - A monitor uses about half of PCs total electricity.
  • Switch off all equipment/appliances (photocopiers, faxes, printers, kettles, coffee machines), including unused laboratory equipment at the end of the day
  • Ensure nothing is left on standby mode.
  • Unplug chargers when not in use, they still consume a small amount of energy if plugged in and not in use

How to change your computer settings to power down

  • Enable the power down features on your PC - For Windows 2000 select: Start > Settings > Control Panel > Power Options > Settings for home/office desk power scheme.
  • You can choose to turn off or hibernate your computer, the latter saves your work as it was when you left the desk. Ideally you should set your monitor to turn off after 10 minutes and the PC to turn off after one or two hours. Remember your monitor will reactivate within a few seconds after moving your mouse.
  • Screen savers are energy wasters! Most computers use about twice as much energy to light up the screen as they use for processing. Originally, screen savers were designed to stop screens being burnt by a constant image, but they aren't needed for modern screens. Not only can screen savers use as much energy as a full screen of work, but many require considerable processing energy as well.

Myth - frequent shut down can shorten lifespan of computers:  Actually this can extend the lifetime. Computer components are now designed to enter into a lower power state or turn off under the control of the operating system.