Re: OT: SETI Shutdown

On Fri, 25 Nov 2005 09:16:25 +0000, Norman Wells <norman@xxxxxxxxxxx>
wrote:

>In article <1h6k4im.ctield1sm9iayN%me5@xxxxxxxxxxx>, Wayne Stuart
><me5@xxxxxxxxxxx> writes
>
>>I actually worked out a while ago, how much wastage my workplace
>>produces with their IT equipment. My office has about 50 staff, and is
>>one of 85 offices nationwide, totalling about 5000 staff. All of them
>>will have a PC on their desk. It is decided from the IT department of
>>head office that all these PCs should be left on permanently so when
>>they need to update them once in a blue moon, they can do it over the
>>network.
>>
>>So assuming each of these PCs use 100 watts when not being used, which
>>will be at least 16 hours a day, and each kilowatt-hour is 7.7 pence, my
>>organisation alone wastes nearly £300,000 every single year for this
>>minor convenience.
>
>>You all okay with this?
>>
>Well, yes actually.
>
>It cuts nearly £300,000 every single year off the heating bill.
>
>Where else does the 'wasted' energy go?

No, it could simply add £300,000 to the electricity bill, the heating
bill could be totally irrelevant - the place might be intentionally
designed to be heated purely by solar gain and occupation gain (from
humans), with top up during the coldest periods by gas for just
£20,000 per year. For a building such as a call centre operating to a
worldwide coverage and hence occupied 24 hours a day, the occupation
gain may even intentionally assume a 100W per seat contribution FROM a
computer.

But in a different climate, or with other assumptions like the
building is super insulated, cooling costs by electricity could be
£750,000, or with the PC's left on this could rise to £1,000,000.

Quite simply without knowing the building design, occupation rates,
and precise energy consumption EVERYTHING is just a guess.



--
.

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