Lori Bongiorno

Vampire power costs

Plug overload / iStockPhoto

There's a lot of interest in the fact that many electronic devices in our homes are using energy even while they are turned off or not being used.  But, how much money do these energy vampires really suck up?

For many people, the standby power used by one device will seem minuscule, but the costs can add up when you take into account just how many things we all have plugged in. What's more, many households, have multiple televisions, computers, cordless phones, and others.

All told, the money wasted by an average U.S. household on standby power each year could easily be used to purchase an iPod Shuffle or in some cases even a Nano.

Below is a list of the annual average costs for many household gadgets that are turned off and plugged in. Just add up the costs for everything you have plugged in at home to find out how much standby power costs you each year.  

Keep in mind that these are just averages, and in some categories there are big differences between most and least efficient products. How much energy each of your devices consumes will depend on both the device itself and your local electricity costs.

We calculated the following averages based on energy use stats from the Lawrence Berkeley National Laboratory and American Council for an Energy-Efficient Economy using a price of 11 cents per kilowatt-hour.

Home Entertainment

  • CRT TV: $1.00
  • LCD TV: $2.97
  • Plasma TV: $2.97
  • DVD: $1.53
  • VCR: $4.63
  • Digital cable box: $17.65
  • Satellite cable box: $15.50
  • DVR: $36.63
  • Digital cable box with DVR: $43.01
  • Set-top satellite box with DVR: $27.52
  • Video game console: $1.00
  • Portable stereo: $1.64
  • AM/FM tuner: $1.11
  • CD player: $4.99

Home Office

  • Desktop computer: $3.96
  • Laptop computer: $8.81
  • Laptop charger (unattached to laptop): $4.38
  • LCD monitor: $1.12
  • Printer: $1.98
  • Multifunction printer, scanner, copier: $5.21
  • Computer speakers: $1.98

Other

  • Coffee maker: $1.12
  • Microwave oven: $3.05
  • Cordless phone: $1.98
  • Answering machine: $1.99
  • Power tool: $3.96
  • Handheld vacuum: $2.97
  • Electric toothbrush: $1.98
  • Cell phone charger (unattached to phone): $0.26

Costs start adding up when you take into account electronics that may be left on when you're not using them.

Here's a small sampling:

  • Desktop computer: $71.00
  • Video game console: $23.10
  • VCR: $7.69
  • DVD player: $7.46
  • CD player: $8.53
There's little consumers can do about set-top cable, satellite, and DVR/TiVo boxes. Television shows can't be taped if boxes are unplugged and it typically takes a long time to reboot boxes. Since it's not practical to unplug them, the best you can do is remember to turn off the box when you're not actively watching TV.

When you add up how much money every U.S. household spends on standy power it amounts to about $4 billion a year of wasted energy.  


Environmental journalist Lori Bongiorno shares green-living tips and product reviews with Yahoo! Green's users. Send Lori a question or suggestion for potential use in a future column. Her book, Green Greener Greenest: A Practical Guide to Making Eco-smart Choices a Part of Your Life is available on Yahoo! Shopping and Amazon.com.

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comments from our community

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  • Posted by gpgope2002 Tue Jun 30, 2009 7:30am PDT
    My kids won't understand this!! And not even my wife. I wish I could turn them green, then each time they look in the mirror they will see it all written all over them.They like the mirror too!!
    Report Abuse
  • Posted by Mary Thu Jul 2, 2009 11:11pm PDT
    open4energy completed an energy study on recharging a BlackBerry. In summary: Cost of electricity charging the BlackBerry each year: 12.5 cents Cost of vampire power $1.26 Our result shows 90% wasted energy, on what I call the charger pretending to be a small wall heater. I know technology will help us save, but can I add a reminder for us to try and save in what we do. Unplug it when it is not being used.
    Report Abuse
  • Posted by Yellowtreats Sun Jul 12, 2009 8:54am PDT
    I hake sure to unplug my moms box.
    Report Abuse
  • Posted by saxplayer1216 Thu Jul 30, 2009 8:17am PDT
    It only uses energy when not in use if it has little lights or runs stuff, even when your not using it, or the basics like lights. The DVR is obvious, it records stuff when your not around, but most people don't want to give up Judge Judy, College Basketball, or Motorcycle racing, so that one's out of the question. Answering machines, well, the point behind thenm is to run while your not around, so that one's out of the question, too. Leaving batteries charging overnight, well that's the perfect time to do so. You don't want to have to wait for the batteries to charge during their waking hours, so you do it while your dreaming off in la-la land. Then there's the thing about the PC. There are so many arguments and angles about that one that I won't go too deep, but overall, turning off your PC at night helps. If you turn it off every moment you walk away, you have to wait for it to start back up and open all your windows again and hope you remembered to save everything before you turned it off. Plus if your impatient, there's no way you would go along with this. But it does weigh out, especially on the patients side, to turn off your computer overnight. The computer automatically saves everything you do in it's temporary memory (also called RAM) and the fastest, most complete way to do that is to turn it off, unplug it, wait 30 - 60 seconds, plug it back in, and everything in the RAM will be gone. If you keep all the stuff from the day before in the Ram when you use it the next day, then you will end up waiting for the computer to figure out what information is the oldest (which takes RAM, too) delete it, and then load the new information into the RAM. So, if you think your computers running too slow, then shut it down, unplug it for 30 to 60 seconds, plug it in, and turn it back on. Then there's the monitor. If you use an LCD, also called flat panel, monitor, then it does not use much electricity, especially when your computers off and it's in sleep mode. If your penny scratcing, yeah, unplug it at night, and turn it off when you walk away. Then there's CFL monitors, which can most clearly be described as a big honkin' things that weigh a ton and have a huge back sticking out so it barely fits on your desk. Those take so much energy that it's almost undescribable. turn it off whenever your not looking at it! especially at night! oh, and BTW, ahol, If you installed an electricity-generating windmill in your backyard, then yes. you would produce enough electricity to power your house and put a lot extra onto the grid, so that the power company [b]would[/b] owe you money.
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  • Posted by whitedragon18th Thu Sep 3, 2009 2:12pm PDT
    children dont learn to turn off anything till the light bill has their name on it.
    Report Abuse
  • Posted by oldestguru Thu Sep 3, 2009 3:47pm PDT
    This is a lie, a laptop computer needs less energy(80w) than a desktop computer(600w). Stop lying to us!
    Report Abuse
  • Posted by smazer Thu Sep 3, 2009 9:42pm PDT
    Earth is not just 'the planet we live on'... and 'green' is not just about our imaginary value constructs such as money.... but i am a hypocrite as well. It's a start.
    Report Abuse
  • Posted by shopper Thu Sep 3, 2009 10:34pm PDT
    A laptop costs more energy to run than a desktop?!?!? Completely bogus: http://www.eu-energystar.org/en/en_022p.shtml Makes me wonder about the rest of the list.
    Report Abuse
  • Posted by Behnam Fri Sep 4, 2009 1:54am PDT
    That's not possible.
    Report Abuse
  • Posted by Anton C Fri Sep 4, 2009 6:10am PDT
    Now that the kids are back to school. I can save money! I use power strips everywhere in my house. I turn them off and unplug them before I leave the house. By the way, I still have land line phones that are not cordless.
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  • Posted by ShannonW Sun Nov 1, 2009 5:09am PST
    Unplugging is a great way to save energy but too much hassle for most people. This article left out a very easy way to accomplish this. "Smart" power strips do the work for you. You turn off one appliance and they cut off power to other appliances. Include a few outlets that are normal (constant power) for cable boxes/DVR/Tivo, etc. http://www.treehugger.com/files/2005/12/smart_power_str.php
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