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Posted by Jan Rasmussen on August 13, 2007, 11:09 am
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> Last week I set up the Kill-a-watt to measure all the electric I use in a
week, for the PC. The PC is turned on 2x per day.
> Usually for 45 minutes in the morning and up to 4-5 hours in the evening. I
turn off the monitor switch when the PC is turned
> off. The priniter is used occassionally and switched on only when needed.
There are a few powered USB items, like a cradle for
> my Pocket PC and a business card scanner (both left on). The same outlet
strip also powers my cable modem and Wireless
> gateway/hub.
>
> The PC is on more frequently on the weekend.
>
> For the week, the total usage was 11.8 kWH for an annual usage of 615 kwH, or
at a rate of $0.10 / kwH about $61.50 per year.
>
> Mark
>
> PS - has anyone else measured the cost of the PC, internet, etc and if so what
are your numbers?
Just wanna note that a typical PC PSU(300 watt) uses ~6 watt when turned off by
the on/off switch on the computer.
That means you can charge a USB device like the mp3 player ZEN V,
even if the computer is off, and if you dont have anything to charge,
the best thing is to turn off the mains.
I bougth a rail width a on/off swith and 6 mains plugs, so when i turn off my
computer
i switch off the mains to the computer and the 4 transformers, 1 for the
speakers,
and 2 for extrenal hard drives and 1 for the router.
a side note.
A running 300 watt PC psu uses about 12 watt, with nothing connectet,
and jump startet with a connection from the green wire to black(0v).
http://www.virtual-hideout.net/images/psu03.jpg
Jan Rasmussen
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