Uncategorized06 Nov 2008 03:58 pm

Reducing power consumption

I bought a Kill-a-Watt power monitor and measured the energy consumption of a few of our electronic devices.

Computers logged-in, but not running any application:

  • laptop: 23 Watts
  • Quad-core CPU, dual hard-drive desktop: 109 Watts (73 for the computer itself, 36 for the LCD monitor)

I’m disappointed that a complete desktop computer system consumes more than 4 times as much as a laptop.  It’s especially disappointing that my 22-inch monitor consumes more that the laptop (which has an LCD monitor)

Plasma TV:

  • 0 Watts when off (Yay!)
  • 310-355 Watts when ON (Yikes!)

Lessons:

  1. Unless you truly need an extremely powerful computer, buy a laptop
  2. Plasma TVs need electricity, lots and lots of it

2 Responses to “Reducing power consumption”

  1. on 07 Nov 2008 at 2:20 pm   gilles

    Et combien de watts en mode veille pour l’ordi ??

  2. on 08 Nov 2008 at 8:35 am   georges

    Bonne question!

    Mes 2 ordinateurs consomment 1 Watt en mode veille. Juste assez pour alimenter la mémoire RAM.

    Personnellement, j’aime bien le mode hibernation, il consomme 0 Watts. Évidemment, il y a un délai durant les transferts entre le RAM et le disque.

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