how much power does a computer use per hour?

Discussion in 'Computing' started by Matthew(The Ghost Whisperer), Apr 20, 2006.

  1. how much does it cost to per hour to leave a computer on?

    All it would be doing is downloaading.
    Monitor would be turned off.





    ****************************************
    Wolf Creek:

    Liz Hunter: Ben's from Australia.
    Ben Mitchell: Yeah, Sydney.
    Mick Taylor: Poofter capital of the world.
     
    Matthew(The Ghost Whisperer), Apr 20, 2006
    #1
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  2. Matthew(The Ghost Whisperer)

    Ken Taylor Guest

    Matthew(The Ghost Whisperer) wrote:
    > how much does it cost to per hour to leave a computer on?
    >
    > All it would be doing is downloaading.
    > Monitor would be turned off.
    >
    >

    Most accurate way would be to measure current draw and work from there.
    At a guess I'd be saying it'd work out to something like 100W, so about
    2.5kWhr per day, but there's so many unknowns that you'd be better off
    getting a measurement done. Do you know someone (a sparky?) with a
    clamp-on current meter?

    Ken
     
    Ken Taylor, Apr 20, 2006
    #2
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  3. Matthew(The Ghost Whisperer)

    Sylvia Else Guest

    Ken Taylor wrote:

    > Matthew(The Ghost Whisperer) wrote:
    >
    >> how much does it cost to per hour to leave a computer on?
    >>
    >> All it would be doing is downloaading.
    >> Monitor would be turned off.
    >>
    >>

    > Most accurate way would be to measure current draw and work from there.
    > At a guess I'd be saying it'd work out to something like 100W, so about
    > 2.5kWhr per day, but there's so many unknowns that you'd be better off
    > getting a measurement done. Do you know someone (a sparky?) with a
    > clamp-on current meter?
    >
    > Ken


    You can also just turn everything else off in the house, and use the
    electricity meter that your electricity bill is based on. Somewhere on
    it there will be an indicator of how many turns the disc makes per kWh.
    Just measure the time for it to turn once, and do the sums. It shouldn't
    take more than a few minutes with a typical meter.

    Sylvia.
     
    Sylvia Else, Apr 20, 2006
    #3
  4. Matthew(The Ghost Whisperer)

    Dyna Soar Guest

    Matthew(The Ghost Whisperer) wrote:
    > how much does it cost to per hour to leave a computer on?


    > All it would be doing is downloaading.
    > Monitor would be turned off.


    Would take around three to four hours to use a Unit (one kilowatt-hour) of
    power. Use the cost per Unit in your area to calculate hourly cost..


    --
    Dyna

    All Rights Reserved. All Wrongs Avenged.
     
    Dyna Soar, Apr 20, 2006
    #4
  5. Matthew(The Ghost Whisperer)

    Duffman Guest

    Matthew(The Ghost Whisperer) wrote:
    > how much does it cost to per hour to leave a computer on?
    >
    > All it would be doing is downloaading.
    > Monitor would be turned off.
    >
    >
    >
    >
    >
    > ****************************************
    > Wolf Creek:
    >
    > Liz Hunter: Ben's from Australia.
    > Ben Mitchell: Yeah, Sydney.
    > Mick Taylor: Poofter capital of the world.


    If its a notebook it will suck up 65-90 watts

    If its a PC, all PC's have a 300-450 watt power supply.
    But the average it would suck up is about 250 watts
    Would do considerably more if Playing 3D games, > 300W
    Each PC is different, graphics, disk drives, memory, CPU
    A 17" monitor will suck up about 100 watts

    I thin its about 12c Kilo watt hour so it would cost
    3c Hour to run 250 watts.
     
    Duffman, Apr 20, 2006
    #5
  6. On Thu, 20 Apr 2006 07:45:04 +0800, "Dyna Soar"
    <> wrote:

    >Matthew(The Ghost Whisperer) wrote:
    >> how much does it cost to per hour to leave a computer on?

    >
    >> All it would be doing is downloaading.
    >> Monitor would be turned off.

    >
    >Would take around three to four hours to use a Unit (one kilowatt-hour) of
    >power. Use the cost per Unit in your area to calculate hourly cost..



    is that all???

    I thought it would be like 10 cents an hour.
    Someone at work tried to tell me 4 cents an hour.





    ****************************************
    Wolf Creek:

    Liz Hunter: Ben's from Australia.
    Ben Mitchell: Yeah, Sydney.
    Mick Taylor: Poofter capital of the world.
     
    Matthew(The Ghost Whisperer), Apr 20, 2006
    #6
  7. Matthew(The Ghost Whisperer)

    Zappy Guest

    "Duffman" <> wrote in message
    news:...
    > Matthew(The Ghost Whisperer) wrote:
    >> how much does it cost to per hour to leave a computer on?
    >>
    >> All it would be doing is downloaading.
    >> Monitor would be turned off.
    >>
    >>
    >>
    >>
    >>
    >> ****************************************
    >> Wolf Creek:
    >>
    >> Liz Hunter: Ben's from Australia. Ben Mitchell: Yeah, Sydney. Mick
    >> Taylor: Poofter capital of the world.

    >
    > If its a notebook it will suck up 65-90 watts
    >
    > If its a PC, all PC's have a 300-450 watt power supply.
    > But the average it would suck up is about 250 watts
    > Would do considerably more if Playing 3D games, > 300W
    > Each PC is different, graphics, disk drives, memory, CPU
    > A 17" monitor will suck up about 100 watts


    Does it help if you tuen your monitor off?
     
    Zappy, Apr 20, 2006
    #7
  8. Matthew(The Ghost Whisperer)

    Ken Taylor Guest

    Matthew(The Ghost Whisperer) wrote:
    > On Thu, 20 Apr 2006 07:45:04 +0800, "Dyna Soar"
    > <> wrote:
    >
    >
    >>Matthew(The Ghost Whisperer) wrote:
    >>
    >>>how much does it cost to per hour to leave a computer on?

    >>
    >>>All it would be doing is downloaading.
    >>>Monitor would be turned off.

    >>
    >>Would take around three to four hours to use a Unit (one kilowatt-hour) of
    >>power. Use the cost per Unit in your area to calculate hourly cost..

    >
    >
    >
    > is that all???
    >
    > I thought it would be like 10 cents an hour.
    > Someone at work tried to tell me 4 cents an hour.
    >
    >

    You'd be figuring about $2.40 per day?? Even my back-of-the-envelope
    guesstimate is probably excessive on average, and it would be about
    $0.40 per day (at about $0.15c/kWhr).

    Cheers.

    Ken
     
    Ken Taylor, Apr 20, 2006
    #8
  9. Matthew(The Ghost Whisperer)

    Ken Taylor Guest

    Zappy wrote:
    > "Duffman" <> wrote in message
    > news:...
    >
    >>Matthew(The Ghost Whisperer) wrote:
    >>
    >>>how much does it cost to per hour to leave a computer on?
    >>>
    >>>All it would be doing is downloaading.
    >>>Monitor would be turned off.
    >>>
    >>>
    >>>
    >>>
    >>>
    >>>****************************************
    >>>Wolf Creek:
    >>>
    >>>Liz Hunter: Ben's from Australia. Ben Mitchell: Yeah, Sydney. Mick
    >>>Taylor: Poofter capital of the world.

    >>
    >>If its a notebook it will suck up 65-90 watts
    >>
    >>If its a PC, all PC's have a 300-450 watt power supply.
    >>But the average it would suck up is about 250 watts
    >>Would do considerably more if Playing 3D games, > 300W
    >>Each PC is different, graphics, disk drives, memory, CPU
    >>A 17" monitor will suck up about 100 watts

    >
    >
    > Does it help if you tuen your monitor off?
    >
    >

    Unless it normally uses no power, in which case it won't help at all.
    But the OP said he wouldn't have a monitor connected.

    Ken
     
    Ken Taylor, Apr 20, 2006
    #9
  10. Matthew(The Ghost Whisperer)

    Duffman Guest

    Zappy wrote:
    > "Duffman" <> wrote in message
    > news:...
    >> Matthew(The Ghost Whisperer) wrote:
    >>> how much does it cost to per hour to leave a computer on?
    >>>
    >>> All it would be doing is downloaading.
    >>> Monitor would be turned off.
    >>>
    >>>
    >>>
    >>>
    >>>
    >>> ****************************************
    >>> Wolf Creek:
    >>>
    >>> Liz Hunter: Ben's from Australia. Ben Mitchell: Yeah, Sydney. Mick
    >>> Taylor: Poofter capital of the world.

    >> If its a notebook it will suck up 65-90 watts
    >>
    >> If its a PC, all PC's have a 300-450 watt power supply.
    >> But the average it would suck up is about 250 watts
    >> Would do considerably more if Playing 3D games, > 300W
    >> Each PC is different, graphics, disk drives, memory, CPU
    >> A 17" monitor will suck up about 100 watts

    >
    > Does it help if you tuen your monitor off?
    >
    >


    If the monitor goes into standby | energy saver | green mode it draws
    ~10 watts, when fully on is about 100 Watts. If you turned it off
    would draw 0 watts, so 'yes' it would help if you 'tuen' it off.

    If you have a 17" or bigger, I would never recommend turning it on/off at all
    you will actually do more harm than leaving it on. The Power on surges are
    enormous and will eventually blow the Power Supply.

    Instead of showing a stupid screen saver (power waster) you should configure
    it to turn the monitor off (energy saver mode).
     
    Duffman, Apr 20, 2006
    #10
  11. Matthew(The Ghost Whisperer)

    Rod Speed Guest

    Matthew(The Ghost Whisperer) <> wrote

    > how much does it cost to per hour to leave a computer on?


    Varys quite a bit with the detail of the
    PC being used and how its configured.

    > All it would be doing is downloaading.
    > Monitor would be turned off.


    Varys from peanuts with a laptop to at most about 300W
    and so about 5c/hour if you are paying 18c/KWH for your
    power. Most pay closer to about 12c/KWH.
     
    Rod Speed, Apr 20, 2006
    #11
  12. Matthew(The Ghost Whisperer)

    Rod Speed Guest

    Matthew(The Ghost Whisperer) <> wrote
    > Dyna Soar <> wrote
    >> Matthew(The Ghost Whisperer) wrote


    >>> how much does it cost to per hour to leave a computer on?


    >>> All it would be doing is downloaading.
    >>> Monitor would be turned off.


    >> Would take around three to four hours to use a Unit
    >> (one kilowatt-hour) of power. Use the cost per Unit
    >> in your area to calculate hourly cost..


    > is that all???


    Yep.

    > I thought it would be like 10 cents an hour.


    That would mean that the PC would have to take about 700W
    and thats much higher than any PC would use with the monitor off.

    > Someone at work tried to tell me 4 cents an hour.


    Thats a reasonable guess if you dont measure
    what power the PC takes with the monitor off.
     
    Rod Speed, Apr 20, 2006
    #12
  13. Matthew(The Ghost Whisperer)

    Sylvia Else Guest

    Rod Speed wrote:

    > Matthew(The Ghost Whisperer) <> wrote
    >
    >
    >>how much does it cost to per hour to leave a computer on?

    >
    >
    > Varys quite a bit with the detail of the
    > PC being used and how its configured.
    >
    >
    >>All it would be doing is downloaading.
    >>Monitor would be turned off.

    >
    >
    > Varys from peanuts with a laptop to at most about 300W
    > and so about 5c/hour if you are paying 18c/KWH for your
    > power. Most pay closer to about 12c/KWH.
    >
    >


    Careful there Rod. When you display knowledge of real facts, you're
    providing information about yourself. Eventually your true identity may
    become known.

    Sylvia.
     
    Sylvia Else, Apr 20, 2006
    #13
  14. Matthew(The Ghost Whisperer)

    Rod Speed Guest

    Some completely unemployable fuckwit pom claiming to be
    Sylvia Else <> wrote just what
    you'd expect from a completely unemployable fuckwit pom.
     
    Rod Speed, Apr 20, 2006
    #14
  15. Matthew(The Ghost Whisperer)

    Craig Welch Guest

    On Thu, 20 Apr 2006 11:02:50 +1000, Duffman <>
    wrote:

    >Instead of showing a stupid screen saver (power waster) you should configure
    >it to turn the monitor off (energy saver mode).


    You could always use one of the slower screen savers ...

    --
    Craig
     
    Craig Welch, Apr 20, 2006
    #15
  16. On Thu, 20 Apr 2006 11:02:50 +1000, Duffman wrote:

    > If you have a 17" or bigger, I would never recommend turning it on/off at all
    > you will actually do more harm than leaving it on. The Power on surges are
    > enormous and will eventually blow the Power Supply.


    That's the silliest thing I have ever heard.

    So my 29" Panasonic CRT TV that I've been turning on and off several times
    a day for around 18 years is a freak of nature?
     
    Anthony Horan, Apr 20, 2006
    #16
  17. Matthew(The Ghost Whisperer)

    DAC Guest

    "Rod Speed" <> wrote in message
    news:...
    > Matthew(The Ghost Whisperer) <> wrote
    >
    >> how much does it cost to per hour to leave a computer on?

    >
    > Varys quite a bit with the detail of the
    > PC being used and how its configured.
    >
    >> All it would be doing is downloaading.
    >> Monitor would be turned off.

    >
    > Varys from peanuts with a laptop to at most about 300W
    > and so about 5c/hour if you are paying 18c/KWH for your
    > power. Most pay closer to about 12c/KWH.


    One of my tarrifs is 33c!
     
    DAC, Apr 20, 2006
    #17
  18. Matthew(The Ghost Whisperer)

    Rod Speed Guest

    DAC <> wrote
    > Rod Speed <> wrote
    >> Matthew(The Ghost Whisperer) <> wrote


    >>> how much does it cost to per hour to leave a computer on?


    >> Varys quite a bit with the detail of the
    >> PC being used and how its configured.


    >>> All it would be doing is downloaading.
    >>> Monitor would be turned off.


    >> Varys from peanuts with a laptop to at most about 300W
    >> and so about 5c/hour if you are paying 18c/KWH for your
    >> power. Most pay closer to about 12c/KWH.


    > One of my tarrifs is 33c!


    Unlikely to be what you would be paying for the use of the PC tho.

    Thats just the rate that applys to the low KWH numbers which would
    be used for other much more basic consumption in most situations.
     
    Rod Speed, Apr 20, 2006
    #18
  19. Matthew(The Ghost Whisperer)

    Sandgroper Guest

    "Matthew(The Ghost Whisperer)" <> wrote in message
    news:...
    > how much does it cost to per hour to leave a computer on?
    >
    > All it would be doing is downloaading.
    > Monitor would be turned off.


    Here is a PSU calculator , it will give you an idea of how much watts are
    being used on your machine.

    http://www.extreme.outervision.com/psucalculator.jsp


    --
    ------------------------------------
    True Multitasking is having three computers and a chair with wheels.


    Sandgroper
    ------------------------------------
    Remove KNICKERS to Email
     
    Sandgroper, Apr 20, 2006
    #19
  20. Matthew(The Ghost Whisperer)

    Highlandish Guest

    Quoth The Raven; Sandgroper <> in
    <44476eb1$0$12121$>
    > "Matthew(The Ghost Whisperer)" <> wrote in message
    > news:...
    >> how much does it cost to per hour to leave a computer on?
    >>
    >> All it would be doing is downloaading.
    >> Monitor would be turned off.

    >
    > Here is a PSU calculator , it will give you an idea of how much watts
    > are being used on your machine.
    >
    > http://www.extreme.outervision.com/psucalculator.jsp


    that's brilliant, how accurate is it?

    --
    Remove the _CURSEING to reply to me

    People who go to conferences are the ones who shouldn't.
     
    Highlandish, Apr 20, 2006
    #20
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