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Pc Usage: Standard PC for 4 hours a night?

Disco Avatar
6y, 2w agoPosted 6 years, 2 weeks ago
Can anyone point me in the right direction here please?

I'm trying to work out the total usage (in electricity or money) of a 4 hour use of standard pc from 6pm - 10pm each night from Monday to Thursday.

I'm trying to proof to someone that the cost is minimal, but they insist otherwise, saying its more than I think.
Disco Avatar
6y, 2w agoPosted 6 years, 2 weeks ago
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[mod]#1
It's pennies. Don't have exact figures but have one of those electricity things and it's currently at 85p for today and that's everything on for hours.
#2
work out the powerrating/consuption of the pc + the monitor + the wifi box in watts per second(most will be on the label back of the appliances)

find out your energy company cost per Wat per second X the 2 figures and X60 X 60 X4 = your usage for 4 hours.

or get an energy monitor
#3
googling seems to roughly agree with dcx at around 300 watts per hour or a unit every 3 hours say. So depending on your electricity cost say 1 unit per night if not really hammering it.

I make that to be about 15p a day! Really not worth worrying about, especially if you are on here you may save a years pc running costs in one deal.........or spend much more than you wanted to.





Edited By: greg_68 on Nov 15, 2010 09:38: .
banned#4
all depends what PC is doing and CPU load

mine uses about 200w so 800w x 4 x 52 = kwpa x 10p = £16 per year.
#5
I don't know specifics like above but i know it's not a lot,it's things like tumble dryers that are expensive to run.
#6
Sounds like students quibbling over their share of the bill?

I thought my electricity bill was going to skyrocket when I moved from laptop to gaming rig, but in reality it has dropped slightly (probably costs less to run than the 360 & TV I used to spend my time playing). I pay £21.00/pm for all my usage in the flat.



Edited By: MBeeching on Nov 15, 2010 10:51
#7
This morning mine was showing at 14 pounds per month, tv was on (plasma), fridge, modem, 3 gigabit switches, my server, fridge and all of the stuff on standby.

It really is pennies.

I'm thinking of buying an electricity plug monitor to see if my supposed low energy server uses less at idle than the pc being on 24/7
#8
sancho1983
This morning mine was showing at 14 pounds per month, tv was on (plasma), fridge, modem, 3 gigabit switches, my server, fridge and all of the stuff on standby.

It really is pennies.

I'm thinking of buying an electricity plug monitor to see if my supposed low energy server uses less at idle than the pc being on 24/7


Are you talking about Homeplugs there? I thought homeplugs just used the circuitry in your home for the router to utilise, with no power needed?
#9
Nope, network switches which are powered, not sure about the rating though

Also, pretty sure homeplugs still use electricity :)

Edited By: sancho1983 on Nov 15, 2010 12:54: asd
#10
What's a standard PC?

Everyone who says its 'not a lot' is missing a lot of the picture.

A modern energy efficient CPU might use only 10W-25W when idle, whilst an older P4 era CPU can use 60W+ when doing nothing. Likewise, some graphics cards can use 50W+ at idle and a couple of hundred at load. A quality 80+ certified PSU can be 85% efficient at half-load, whilst a non-certified cheap model can be as low as 65%.

If your computer is modern, and mainly being used for web-browsing (and not running tasks such as Folding in the background) it will probably use under 150W at the wall. If you have an older, high-end system with a beastly CPU and GPU, it could be over 300W, especially if you are running background tasks (how hot it gets should give you a clue!).

NB Even if its only 200W, thats close to 1 unit over 4 hours and 5 if its on 24/7. Electricity is generally around 15p per unit these days (at a flat rate when all taxes are factored in), so it adds up to about £40 a year for 4hours/day and over £200 if on 24/7. If you have a computer on 24/7, it definitely pays to buy an energy efficient CPU and PSU...
#11
so, if I was to say 20p per day (4 hour period) then I wouldn't be that far off, is that right?

I was told it costs the same to boil a kettle for 3 cups of cofffee as it does to have a standard PC running for 12 hours!?

Edited By: Disco on Nov 15, 2010 14:06

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