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Kevin Walsh
2004-12-16, 13:18
Aaron Zinck [azinck3 (AT) ufl (DOT) edu] wrote:
> Your question prompted me to do a little searching. Certainly a little
> math and some knowledge of your utility company's rates could yield the
> answer, or you Brits could check out this site:
> http://www.ukpower.co.uk/running-costs-elec.asp which will at least yield
> a ballpark figure. Looks like a computer, if constantly drawing 300
> watts, will cost you about 144 pounds to run for the year.
>
You're assuming that a PSU rated at 300 watts will make use of all 300
watts 24 hours per day, every day. I think you'll find that the actual
usage will be a fraction of that amount - even when switched on 24x7.

Well, unless you're hammering your disks and searching for aliens in
your machine's "downtime", that is. :-)

--
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Bill Burns
2004-12-16, 14:28
Kevin Walsh wrote:
> Aaron Zinck [azinck3 (AT) ufl (DOT) edu] wrote:
>
>>Your question prompted me to do a little searching. Certainly a little
>>math and some knowledge of your utility company's rates could yield the
>>answer, or you Brits could check out this site:
>>http://www.ukpower.co.uk/running-costs-elec.asp which will at least yield
>>a ballpark figure. Looks like a computer, if constantly drawing 300
>>watts, will cost you about 144 pounds to run for the year.
>>
>
> You're assuming that a PSU rated at 300 watts will make use of all 300
> watts 24 hours per day, every day. I think you'll find that the actual
> usage will be a fraction of that amount - even when switched on 24x7.

I just installed a new UPS which reports actual power usage. I'm
running two PCs on it, one a P3 Linux box with no monitor; the other my
main P4 PC with a 19" LCD monitor, plus the cable modem, router, and
wireless phone base unit.

Total reported power consumption is 194 watts.

--
Bill Burns
Long Island NY USA
mailto:billb (AT) ftldesign (DOT) com