[nSLUG] Measured wattage of atom system

George N. White III gnwiii at gmail.com
Tue Sep 16 13:02:11 ADT 2008


On Tue, Sep 16, 2008 at 1:51 AM, Jason Kenney <jdkenney at gmail.com> wrote:

> So assuming you keep your systems on 24/7,
>
> at the current (ie more now than in the past) cost of electricity,
> 10.67 cents/kW*hour
>
> every 100W uses 25.6 cents of electricity a day.

Virtually all the energy used by a PC ends up as heat.
In NS, for >6 months of the year, the heat is not "waste".
It contributes to the overall heating for your home/office, and
should be subtracted from the cost of other heat sources.

In other words, compared to Silicon Valley, where for 6
months of the year you pay to remove the heat, the economics
of running a PC are much different.

There are other costs/benefits of heat -- most components age more rapidly,
so if the lower energy consumption allows you to keep the components
cooler, you benefit (at least statistically) from improved reliability.
Depending on the surroundings, noise from cooling fans can be a
plus or a minus.

> You're saying that probably at the very most a quarter a day of
> electricity was a significant factor in choosing what hardware you
> used?

-- 
George N. White III <aa056 at chebucto.ns.ca>
Head of St. Margarets Bay, Nova Scotia



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