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Companies Waste $2.8 Billion Per Year Powering Unused PCs

snydeq writes "Unused PCs — computers that are powered on but not in use — are expected to emit approximately 20 million tons of CO2 this year, roughly equivalent to the impact of 4 million cars, according to report by 1E and the Alliance to Save Energy. All told, US organizations will waste $2.8 billion to power 108 million unused machines this year. The notion that power used turning on PCs negates any benefits of turning them off has been discussed recently as one of five PC power myths. By turning off unused machines and practicing proper PC power management, companies stand to save more than $36 per desktop PC per year."

29 of 348 comments (clear)

  1. Magic smoke by Jurily · · Score: 4, Funny

    Unused PCs computers that are powered on but not in use are expected to emit approximately 20 million tons of CO2 this year

    How exactly does that happen? What about the computers that are powered by a nuclear reactor?

    I thought when CPUs emit smoke you have to buy a new one.

    1. Re:Magic smoke by philipgar · · Score: 5, Insightful

      Actually, even the ones powered by coal are likely not wasting much CO2. Considering a machine is most likely to be sitting idle at night, and that the coal plants have to operate 24/7 (they can't dynamically lower their power output, that's provided by secondary sources during the afternoon). Power usage generally peaks in the afternoon, and so other power generation stations (those like natural gas that can be brought online quickly) handle the peak load, but, as coal power is cheaper, they try to get as much as possible from the coal. If the base load provided by the coal is greater than the power being consumed, than any additional power demanded isn't really "wasting" electricity. It's just using electricity that has already been generated. Of course, if this amount is great enough to change the power plants operating conditions, it does matter, and as far as the businesses are concerned, this power does cost money, and quite a bit of it.

      However, saying the plant is releasing more CO2 for these computers is generally not true.

      Phil

    2. Re:Magic smoke by CarpetShark · · Score: 5, Funny

      What about the computers that are powered by a nuclear reactor?

      Is THAT what they're pushing as minimum spec for Windows now?

    3. Re:Magic smoke by sumdumass · · Score: 5, Insightful

      Umm you forgot that along with "scientific evidence", they also claim the consensus is in and the science is settled so if you question it, you either hate people or work for an oil company.

    4. Re:Magic smoke by jellomizer · · Score: 5, Insightful

      Exactly. Environmentalism will get more traction if they are honest about their data. We as a general population are use to hearing the doom conditions, as people are trying to push their agenda. So they do their computer models and give the results of the 4th standard deviation of the results.

      The more truth is the fact if we reduce our power consumptions for the long term then the power companies can lower their output, as there is less demand. However the fact that your PC is on last night doesn't mean you PC is the cause of so much Carbon in the air. As it would still be there if you turn it off.

      --
      If something is so important that you feel the need to post it on the internet... It probably isn't that important.
    5. Re:Magic smoke by hcdejong · · Score: 4, Informative

      28.8 billion kWh/year is more than enough to 'change the power plants operating conditions'. A 125 MWe unit (the output of one generator of a nearby power station) delivers about 1 billion kWh/y, so shutting down all PCs at night would make a significant dent in the base load.

    6. Re:Magic smoke by Velska1 · · Score: 5, Insightful

      Dude, you can shut down a PC at night, and get it running in the morning.

      You can not, however, do the same thing with a power plant. It takes much longer to cycle up.

      Anyhow, what we would need is a lot of high-efficiency photovoltaic panels, that would create the most power exactly when you have peak demand in the areas where solar is viable to begin with.

      --
      Every problem has a solution that is simple, easy and wrong. Selling our Liberty for a little Security is a much too de
    7. Re:Magic smoke by GauteL · · Score: 4, Insightful

      You are missing the point completely. The point is that if most businesses started switching off their computers at night, the power companies would most likely change their operating conditions.

      It might make it less economically viable to maintain such a high base load during the night, meaning it becomes more profitable to shift some of the power production on the sources with a shorter power up/down cycle.

      Educating companies about how much money they are wasting is likely to be far more effective than asking them to be green for the environment.

    8. Re:Magic smoke by NeverVotedBush · · Score: 5, Informative

      Why "5 minutes"? I would guess that if you turn off PCs after the workday and don't turn them back on until the next morning you save more like 15 to 16 hours of run time.

      That's 960 minutes per day x 230 work days = 220,800 minutes. Or 3,680 hours per desktop per year. That's not counting in the 48 hours every weekend (52) which equals an additional 2496 hours, plus however many holiday days at another 24 hours each. If there are seven for whatever business, that's another 168 hours. And if the worker takes off two weeks each year, that's an additional 336 hours.

      Grand total is 6,680 hours of wasted run time as an estimate.

      For the people who run the fancy screensavers, the power used is fairly large. A blank screen is the best. That lets the monitor go into low power.

    9. Re:Magic smoke by NeverVotedBush · · Score: 4, Insightful

      You do realize there are consequences from getting your power from nuclear reactors and then wasting it, don't you?

      Higher load means more reactors may need to be built, it generates more radioactive waste, heats up more water, raises the risk of accident, etc.

      And since you are using nuclear fuel that much faster, more has to be mined and refined which adds to CO2 loading, chemical and radioactive chemical waste streams.

      In addition, since the country is on a grid and utilities can flow excess capability into neighboring regions, you reduce that excess capability and therefore increase the amount of CO2 that some coal or natural gas-fired plant generates.

      There are consequences for everything.

      And sure, your computer or two doesn't make much of a contribution, but the more people that feel like you and also waste power adds up. That is the attitude that got us where we are now.

  2. obvious reaction by rarel · · Score: 5, Funny

    I'm at work, enviro-conscious, and I love my company. So I'll turn my workstation off right n

    1. Re:obvious reaction by daem0n1x · · Score: 4, Insightful

      It has nothing to do with loving your company. What people don't realize often is that wasting company resources affects those who work in it.

      If the employees are wasting too much power, the money to pay for them won't be taken from shareholder dividends or executive incentives. It will come from salaries.

      So, it's not about loving the company. Don't waste company resources because, in the end, it's YOU who pays the bill.

      Besides, also think about the impact of waste on the environment.

    2. Re:obvious reaction by Anonymous Coward · · Score: 5, Insightful

      Don't be so naive. You save the company money, you won't see a dime. Shareholder dividends and executive incentives expand to fill the available budget.

    3. Re:obvious reaction by sumdumass · · Score: 4, Interesting

      The story says $36 per desktop computer per year could be saved. Now that sound like a lot of money at a company with 500 desktops ($18,000). But that company will have at least 500 employees and probably more. At 10% more or 550 employees to work those 500 desktop computers, that brings the potential salary increases to about $32 a year. If the average person works 38 hours a week and 48 weeks a year (1842 hours), that's about a penny or less per hour raise.

      But it gets even worse. The heat cycles of computers heating up when in use and cooling down when powered off will take a small toll on the life of the computer. So I guess the real question might be is if the computer lasts 2 years instead of 3 or 4 or even 5 years, how many of those would need to be replaced because the Co2 emitted from making the things from scratch outweighed the entire carbon savings from the $36 worth of electricity not in use assuming that the power for those computers don't already come from a Co2-less generating facility. My guess is that an early replacement on any of them will offset any environmental savings which sort of makes this idea more hand waving then anything.

  3. Familiarity Breeds Contempt by lobiusmoop · · Score: 4, Insightful

    I think the fundamental problem is that in the West, energy (specifically watts-hours of electricity in this case) have been so cheap in the last few decades as to be effectively free. This is changing now through worldwide recession and the depletion of the easy-to-get fossil fuel. Once electricity prices start seriously ramping up (which they inevitably will), companies will be giving their utility bills a lot more scrutiny.

    --
    "I bless every day that I continue to live, for every day is pure profit."
  4. Productivity by sakdoctor · · Score: 5, Insightful

    I could lose $36 worth of productivity in a few days. My desktop and servers stay ON.

    1. Re:Productivity by FridgeFreezer · · Score: 5, Insightful
      Yes and no, true thermal cycling does cause marginal components to fail but by leaving the thing on all the time rather than the half of the day you're actually using it you're halving the "useful" life of the thing anyway.

      There is a balance between leaving it on 100% of the time and switching everything on and off every time you walk from your desk to the coffee machine and back.

      --
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    2. Re:Productivity by Zebedeu · · Score: 4, Interesting

      Never heard of suspend? Hybernate?

  5. Turning PCs into a grid by jw3 · · Score: 4, Interesting
    Of course, this solution is not for everyone, but it works quite nice at the university where I'm working. Three departments (chemistry, biology and physics) got together to form a computer administrative unit. Essentially, any workstation at one of these three dpts has the same version of OS (mostly Windows) with the same software installed. And each of these installations includes condor for distributed computing. Effectively, you get something comparable to a 1000+ nodes cluster -- and some of the machines are quite strong!
    Scientists and students alike are allowed to use it freely for their computations. There is a batch submission system, and a whole lot of numerical calculations run on these computers during night. There are a few caveats, though:
    • many biological applications need a large amount of data -- and the moment that you need to transfer gigabytes to each of the nodes (as they do not share storage) the whole thing is no longer reasonable.
    • you always have to take into account a 1-5% job loss, so if you want e.g. 1000 simulation runs, you should dispatch 1200 runs to be on the safe side. The job loss comes from a) machine being switched off b) machine having all sorts of random troubles (disk full, some weird software interaction) c) some jobs take awfully long to execute, so when 99% of your other jobs are done, you just need to kill the others.
    • Sometimes you rather launch the job locally and wait two days rather then spend half a day on preparing and testing the batch submission and get the results next morning (my time is more valuable than the CPU time...)

    All in all, you get lots of CPU, but low reliability. Which is fine for many applications. Additionally, not only you prevent energy wastage, but you also use the hardware more efficiently (so that the brand new quad core of the dpts secretary actually gets used in a reasonable way).
    By the way -- our admins hate it, when Windows computers are being switched off. They run the updates at night, as during the day the users are likely to stop an update that takes to long. I was being bashed for switching off computers during night :-)
    j.

    1. Re:Turning PCs into a grid by jw3 · · Score: 4, Informative

      The computers are not being left *solely* for the purposes of the cluster. The policy of the university admins is to leave them overnight for updates, and anyway the users don't like to turn them off (so they don't have to wait for the computer to boot up in the morning). Therefore we are utilising what sits there idle anyway. Furthermore, anyway you don't take into account the overhead of buying a supercomputer / cluster with 1000+ nodes in the first place -- and we are utilising what has already been payed for (both in terms of money from the university and in terms of energy used / CO2 emission that took to produce the units). Finally, buying a supercomputer / cluster is, due to the necessary bureaucracy involved in expensive investments, a major pain in the ass and also a system-administrative effort.

      Of course, this solution cannot replace a proper cluster -- I have already outlined why, and also I agree with you in puncto efficiency. But if you have a bunch of PCs sitting around idle at night, and need calculations -- this may be a cheap and quick solution.

      j.

  6. Dumb Terminals by Bert64 · · Score: 4, Interesting

    Use dumb terminals, something like sunrays...

    Configure them to shut off when idle instead of run a screensaver, when you power it back on it boots pretty much instantly and the user can re-enter their password (or reinsert their smartcard) and be back where they were, all the session state is stored on the server.

    No need to keep machines on overnight for updates, because the terminals are dumb enough not to need updates...

    Dumb terminals boot instantly, so no need to keep machines pre loaded to save booting time.

    Put a power breaker by the door, last one out can turn the breaker off, first one in can turn it on (they used to do this in our computer labs at college)... There shouldn't need to be anything turned on in an office when there's no people there.

    --
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    1. Re:Dumb Terminals by RAMMS+EIN · · Score: 4, Insightful

      It's sad that it's so easy to come up with ways to save power, but so few places and people actually implement them. I even have a colleague who refuses to turn off his computer, because "a 100 W more or less doesn't matter in the grand scheme of things". He's right about that, of course, but what he and many others don't realize is that doing the little things can actually affect the grand scheme of things. I, for example, use less than half as much electricity as the average household around me, simply because I use energy-efficient products and turn off most things when I'm not using them. It's not a lot of trouble, but if everybody did it, we could easily halve the power consumed by households!

      --
      Please correct me if I got my facts wrong.
  7. Re:Half an hour a year? by telchine · · Score: 5, Funny

    what exactly are these programs doing which takes such an incredible amount of time before they become useful?

    Initializing DRM layers, generating transparent overlay effects, decreasing the spin speed of the hard drive and generating a nice Vista logo on the desktop.

  8. Vast underestimation by tygerstripes · · Score: 5, Insightful

    This doesn't take into account the vast, vast amount of time, energy and resources wasted by people who don't know how to use the fucking things properly in the first place. Let's start there before we get to titivating with power-management.

    I've lost count of the number of times I've had to show people how to do the simplest things, to save them hours of wasted effort each week. This usually leads to me writing explicit instructions and disseminating to those concerned but, ultimately, people just don't care (and I have trained people for a living with notable success, so it's not a "techie-personality pissing people off" thing).

    Power-management? How about education. If every office-worker were to spend one day a year going through their daily grind with someone sat beside them who knows how to use their PC's potential (and how to explain it), productivity would double. I'm not just slagging off my luddite colleagues here; I know there are things I could do better, and would genuinely welcome the attention of someone who could show me how.

    Sorry to vent my frustrations here, but it's that or do it at work. To put it bluntly: nice study, but frankly you're just pissing in the ocean.

    --
    Meta will eat itself
  9. I wonder how many of these computers... by billius · · Score: 4, Interesting

    are malware-laden Windows boxes at small businesses with little or no regular IT Staff. I did contract IT work for small business a while back and some of the computers I had to deal with were borderline unusable. In some cases, a full reboot meant a full 15 minutes before the computer was in some semblance of working order again. That's definitely enough time to make a less savvy user want to just leave the thing on overnight and only shutdown/reboot when you really had to. And of course many of these folks didn't want to hear about how their super-awesome toolbars were the root of the problem.

  10. Re:Half an hour a year? by daem0n1x · · Score: 4, Informative

    That's why I use hibernation. It takes one minute to shutdown and another to startup.

  11. Power by ledow · · Score: 4, Interesting

    And any company THAT bothered by this would be using more power-efficient PC's anyway. Face it, 99% of staff using a computer as part of their daily work don't need a full desktop PC and certainly don't need dual-core systems with Gbs of RAM. So instead of faffing about trying to recoup some of the loss from buying that terrible hardware in the first place (monetary costs, environmental costs, maintenance costs, etc.) they would be much better off buying some low-power desktops (like the Atom's, Via's etc.) and thus not pumping most of their electricity into heat wastage, fans, office cooling, etc. when they could just have a small 60W or so (maximum) PC that does the same jobs.

    Those who are committed to their existing hardware - well, they should have been specifying and testing WOL, ACPI sleep, etc. in the first place if they wanted to make sure it worked in their particular environment. Chances are those stuck on old machines will have more problems trying to get the PC to sleep and to wake on cue than they would have just to buy a new cheap desktop. My pet hate is machines that won't WOL without having first been turned on manually - a power cut overnight (when the machines aren't on) means that the PC's just sit there and ignore WOL packets. And that is on fairly recent hardware (2 years old?). I know it's "wake" on LAN, but a full boot and complete shutdown (not sleep mode) will let it respond to WOL packets forever until the power disappears again.

    I would hazard a guess that the following ALL save more power than would be saved by shutting off PC's overnight for a lot less hassle and inconvenience:

    - Cutting off background services in Windows.
    - Replacing hardware with more modern equipment.
    - Disabling, centralising and/or just changing vendor of the antivirus programs to use less CPU, disk-access, etc.
    - Replacing 10% of computers with a low-power alternative (even a laptop!)
    - Turning off WAP's and other unnecessary networking hardware overnight.
    - Turning the room temperature up/down by half a degree permanently (depending on the outside environment)
    - Installing doors that shut themselves to keep hot/cold air in.
    - Opening a couple of blinds/curtains to let sunlight into some of the less-used but still heated areas (cold-countries only) or fitting blinds/curtains to reduce the heat taken in from outside (hot-countries only).
    - Training users to use shortcut keys instead of clicking the mouse for everything.
    - Or removing that poxy plasma TV in the company reception which is on permanent loop playing to nobody.

    The thing is, we take power so much for granted that when we get told to "save" it, we worry over the little bits (energy-saving bulbs) and completely forget about the larger draws (heating / cooling). $36 / year / PC is nothing, no matter the scale of the company. Even a 100 PC office (which could theoretically save $3600 / year) will probably spend multiples of that on heating/cooling, bringing someone in to do the work, or make multiples of that amount by selling off some of their old IT kit, fitting those light fittings that only switch on if someone is actually in an office, etc.

    Getting businesses to understand means providing a valid, comparable reason. That normally means *money*. But even the green-friendly companies will save much, much, much, much more money by just replacing el-cheapo PC World computer with a decent low-power one and then selling off the old kit. If you do it right, you would even MAKE money by doing this (I know it's about £200/unit for a decent mini-ITX machine, and you could easily get that for a recent second-hand machine of good spec).

    It's a *waste* of time. The proportion of power you save does not justify the effort to do it, especially not when a tiny, unnoticeable adjustment to a thermostat saves ten times the amount of power, and the hassle associated with implementing power-friendly PC's does not justify the end. Put a sign up and send a memo round to staff to turn off their PC

  12. Productivity by happy_place · · Score: 4, Funny

    I've some coworkers whose PCs would be more productive turned off... I won't even go into their environmental impact... [shudder!] --Ray

    --
    http://www.beanleafpress.com
  13. Unused ? How dare you... by TractorBarry · · Score: 4, Funny

    How dare you call these PCs unused... They're part of my botnet you insensitive clods !

    --
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