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 »  Home  »  home  »  Standby power electricity consumption
Standby power electricity consumption
By Green Living Tips | Published  03/31/2007 | home , gadgets , energy , business
Phantom electricity loads = added power costs and carbon dioxide

You can reduce your electricity bills by as much as 10% - simply by unplugging appliances or switching devices off at the power point they are connected to when not in use. It's good for your wallet and for our planet.

Standby, also known as phantom power loads, are responsible for an incredible amount of electricity consumption nationally. Practically every electronic  device that you plug into a socket continues to consume electricity after you've switched the device off. Examples include phone charges, notebook power adaptors, microwave ovens, game consoles cd, video and dvd players

If an appliance or device has an adaptor, the easiest way to tell if it's still drawing power when the device is switched off is if the adaptor is warm.

While the amount of power being drawn by each of these appliances in standby mode usually isn't huge - anything from .5 - 5 watts per hour; when you consider the number of electronics devices in the average home these days and multiply that by the number of hours in a year; then multiply that by the number of households in your country - it really adds up. The average home in the USA consumers about 50 watts of standby power an hour.

I've read that the annual collective standby power draw from households in the USA is around 8 gigawatts - equivalent to the electricity production of eight large power plants. Globally, standby power consumption is estimated to be responsible for about 1% of the world’s carbon dioxide emissions. Carbon dioxide is a gas that contributes to global warming.

Imagine that - we could knock off 1% of the amount of carbon dioxide being spewed into the environment just by switching appliances and devices off at the wall when not in use; and all save a few bucks on each power bill in the process!


 
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Michael Bloch
Green Living Tips.com
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Comments
  • Comment #1 (Posted by Lynn Marquardt)

    Can anyone tell me where I can find the exact per hour consumption of a computer screen while it is "asleep" and a computer processor while it is "off"?

    I see offices with screens which are only asleep instead of off while people are gone on vacation and of course most people never turn them off at night.

    To be involved this information could be compiled by we ordinary folks and presented to our employers or any government or business office as a money saver.

    If power strips which support computers screens, processors, lights, calculators and personal fans were easily accessable to employees, they could switch off the strip after they turned off their computers. Good for the environment and good for the “bottom line.”

     
  • Comment #2 (Posted by Michael - Green Living Tips)

    Lynn, it varies greatly with the type/size/manufacturer of the unit but generally speaking, for a 17" LCD screen, it's usually between 30-55 watts normal operation mode and 2-5 watts in standby mode.

    Most of the notebooks, desktop and workstations released by Dell these days consume less than 5 watts in a low-power mode according to their site.

    I agree with you totally about the power-strip location issue. Mine is locate directly above my desk which makes it simple to get to, whereas my partners is among the dust bunnies under her desk which means having to crawl under to switch it off.
     
  • Comment #3 (Posted by Jackie)

    Other household items that may be drawing power while off are table or standing lamps, printers and faxes.
     
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