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#400304 - 9th Apr 2010 5:27am How much does it cost?
Wheels Offline
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Registered: 4th Jan 2005
Posts: 8795
Loc: Tranmere
I was just wondering if anyone knows how much it would cost to power something for a year?

Eg: my cctv pc that is running 550watts 24/7 365days a year.

Would it be more cost effective to buy another pc running less power And have that on 24/7.

I can get a good enough PC for under 100, so if someone could tell me the avarege price to run the above then I can work out if it's worth it and how long it will take before the PC has paid for itself.

smile

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#400305 - 9th Apr 2010 5:39am Re: How much does it cost? [Re: Wheels]
diggingdeeper Offline

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Registered: 9th Jul 2008
Posts: 10282
Loc: Birkenhead
I am charged 11.8p per Kilowatt Hour, so 550 Watts is about 4818 Kilowatt hours, which will cost 568.

I use the rough guideline of 1 for every watt for running it a year - so a 20 Watt light bulb cost roughly 20 per year.

Or if something is say 60 watts but only used about a third of the time, this would also cost 20 per year (a third of 60).

Bet the above answer is not what you wanted, I have a plugin device that gives you actual cost so you can find out what a fridge costs to run by using it over a few days.


Edited by diggingdeeper (9th Apr 2010 5:41am)
Edit Reason: bloody keyboard!
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#400308 - 9th Apr 2010 8:55am Re: How much does it cost? [Re: Wheels]
little_pob Offline
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Registered: 30th May 2008
Posts: 444
Loc: Upton
Did you get the 550W figure from the power supply unit? As the figure quoted here just means the PC can draw as much as it needs upto the rated wattage (rather than running continuously at this wattage). For example you could throw in a 400W or a 750W PSU in the case, and provided it is enough to power the components you'll find they draw about the same power (although due to heat and capacitor aging the 750W will probably work out more effient in the long run).

To get a more accurate estimate a power monitoring device like diggingdeeper suggests would be the easiest way.

Don't forget the 100 PC will draw power too.

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#400334 - 9th Apr 2010 11:06am Re: How much does it cost? [Re: little_pob]
Sanchez Offline

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Registered: 17th Dec 2003
Posts: 8019
Loc: my house
550 watts for a camer system seems alot bud, you sure thats right?
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#400335 - 9th Apr 2010 11:08am Re: How much does it cost? [Re: Sanchez]
StuyMac Offline

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Registered: 24th Nov 2003
Posts: 12002
Loc: Wirralshire
...its prolly wired to an electric fence as well wink
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#400382 - 9th Apr 2010 1:28pm Re: How much does it cost? [Re: StuyMac]
Wheels Offline
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Registered: 4th Jan 2005
Posts: 8795
Loc: Tranmere
yes mate it is 550W, Its a multipurpose system. Its a Quad Core PC that is also used for watching and Editing HD videos using a HD graphics card, So its good to have the power there.

its great cos it runs flawlessly at all times, even if I open it up to loads of applications at the same time. but when I came home today I could hear it running and it got me thinking to how much power it is using.

If I bought a PC with the spec to run the cctv, say 200watts then I'm guessing from the above comments I will already be saving money.

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#400395 - 9th Apr 2010 2:30pm Re: How much does it cost? [Re: Wheels]
little_pob Offline
Smartchild

Registered: 30th May 2008
Posts: 444
Loc: Upton
If the PC only needs to use 200W it will only draw 200W regardless of the 'size' of the power pack.

That's not to say a CPU with a lower TDP as well as lower power RAM, graphics card and hard drive won't save you money on your electicity bill...

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#400401 - 9th Apr 2010 2:57pm Re: How much does it cost? [Re: little_pob]
Wheels Offline
Wiki Veteran

Registered: 4th Jan 2005
Posts: 8795
Loc: Tranmere
Yer well that's the thing, the graphics card was a main reason for the high watt PSU. It's only 3gb of ram but it does not need that for the cctv also a quadcore is overkill.

So it's kinda like when jeremy clarkson used a v8 to power a blender. Sure it did it but so could a normal blender lol.

I think I've kinda answered my own question here lol. Think a cheap pc is the answer? :S

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#400403 - 9th Apr 2010 3:00pm Re: How much does it cost? [Re: Wheels]
StuyMac Offline

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Registered: 24th Nov 2003
Posts: 12002
Loc: Wirralshire
....but a V8 blender is sooooooo cool grin
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#400405 - 9th Apr 2010 3:11pm Re: How much does it cost? [Re: StuyMac]
MissGuided Offline

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Registered: 18th Jul 2008
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Originally Posted By: StuyMac
....but a V8 blender is sooooooo cool grin



think
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#400408 - 9th Apr 2010 3:16pm Re: How much does it cost? [Re: MissGuided]
StuyMac Offline

Wiki Master

Registered: 24th Nov 2003
Posts: 12002
Loc: Wirralshire
V8 BLENDER!

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What If There Were No Hypothetical Questions?

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#400410 - 9th Apr 2010 3:19pm Re: How much does it cost? [Re: StuyMac]
MissGuided Offline

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Registered: 18th Jul 2008
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Loc: Back of the wardrobe
Silly boy's nonsense!
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#400413 - 9th Apr 2010 3:22pm Re: How much does it cost? [Re: MissGuided]
StuyMac Offline

Wiki Master

Registered: 24th Nov 2003
Posts: 12002
Loc: Wirralshire
Exactly, even for a fully decked garden a bloke would need a sit on lawn mower grin
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#400418 - 9th Apr 2010 3:51pm Re: How much does it cost? [Re: StuyMac]
MissGuided Offline

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Registered: 18th Jul 2008
Posts: 9995
Loc: Back of the wardrobe
Originally Posted By: StuyMac
Exactly, even for a fully decked garden a bloke would need a sit on lawn mower grin
That might be a good idea - I've seen the mower in the shed - the kind that just tickles the tops of the grass - I think the grass probably laughs when it sees you get it out raftl
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#400420 - 9th Apr 2010 4:22pm Re: How much does it cost? [Re: Wheels]
diggingdeeper Offline

Wiki Master

Registered: 9th Jul 2008
Posts: 10282
Loc: Birkenhead
Originally Posted By: Wheels
yes mate it is 550W


I would have doubted it is that much power in normal use, I would expect that is medium level surge power, I can pop along with my power meter if you want an accurate measurement.
_________________________
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When the debate is lost, slander becomes the tool of the loser. Socrates

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