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Tweeting Convenience Receptacle Meters

Written by Andrew Kimos Thu, Feb 25 2010
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One Step Closer to the Jetsons

In the news this week there has been talk of inanimate objects that can Tweet their status to humans via their Twitter accounts.  Included in this array were a house plant that can complain about being under- or over-watered and a pair of shoes that can advertise when they take steps.  Entertaining, for sure, but the one category that caught my attention was electric meters that can Tweet data.

At the risk of trespassing into the “At Home” realm here on Buildipedia, the product appears to have a domestic focus as currently marketed.  For example, the power outlet that your refrigerator is plugged into can let you know (via Twitter) how much power it’s drawing.  However, this is an interesting concept for managers of all facility sizes to be aware of.

The idea of a “smart meter” fits with our recent article on Building Automatic Systems (BAS), as well as our recent blog on “smart bridges.”  One comment received on our BAS article offered a thought from the Buildipedia audience: “I can’t wait until we are like the Jetsons."  This internet-reporting electric meter clearly has some potential and moves us closer to the fully automated household (or facility) of the Jetsons’ cartoon.  One advantage of this innovation is that it could potentially avoid the necessity of purchasing a larger, enterprise-wide (and therefore expensive) BAS system.  I am confident that there are large BAS systems available now that provide this functionality, and so much more, but all that capability may not be appropriate for more limited or temporary applications.

One attraction I see in this type of a product is that it’s suited to the electrical monitoring requirements of a discrete set of convenience receptacles in the home or office environment.  Clearly, though, the device could be applicable to larger facilities having an array of isolated but important electrical devices.  For example, an electric meter with a Twitter capability could broadcast to the maintenance crew or other responsible parties at a communications transmitter site that a radio transmitter circuit had tripped off-line, or notify personnel at a frozen-foods storage facility that a freezer circuit  had tripped.  In my prior life in facilities management, one location where I worked had a flashing light and audible alarm that went off when the main sewer lift station pumps tripped off-line.  This new technology offers an internet-interfaced broadcast alternative for convenience receptacles.

When I first played around with energy audits and power tracking fifteen years ago, I used very similar devices to the “Tweet-a-Watt” mechanism shown on this website, but without the internet reporting capability.  It was always interesting to plug the office copy machine (or random computer terminals) into similar watt-recorders that were available then.  After a day or a week, or overnight, the cumulative watt-meter function could be transcribed.  Immediately, those results could be extrapolated across a campus.  With reasonable assumptions, energy use, costs, and potential savings could then be determined.

Another potential application I could see would be to take advantage of this kind of device in a more creative way by using it in conjunction with external security lighting systems, which are commonly paired with motion sensors.  If the motion-sensor is tripped, the lights will illuminate, and the receptacle they’re plugged into would start tallying wattage.  At a set minimum wattage level, a Tweet would be issued, alerting the building owners that a security light had been turned on.

This is an interesting technology that I’m sure will continue to evolve and benefit the facilities management community!

Last modified on Fri Mar 05 2010 5:04pm Read 751 times
Andrew Kimos

Andrew Kimos

Andrew Kimos completed the civil engineering programs at the U.S. Coast Guard Academy (B.S. 1987) and the University of Illinois (M.S. 1992) and is a registered Professional Engineer in the state of Wisconsin. He served as a design engineer, construction project manager, facilities engineer, and executive leader in the Coast Guard for over 20 years. He worked as a regional airline pilot in the western U.S. before joining the Buildipedia.com team as Operations Channel Producer.

Website: buildipedia.com/channels/operations
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4 comments

  • Comment Link Andrew Kimos Sat Mar 06 2010 3:33am posted by Andrew Kimos

    In support of Buildipedia's content and my conceptions, the Reliable Controls weblink, www.reliablecontrols.com, offers a video with greater detail on internet-connected building controls, and describes very comprehensive BAS operations via the internet. We are coordinating with a BAS vendor and a facility partner right now, hoping to gain some additional new content on this topic and learn more. This internet-connected BAS technology is now common, if not a new BAS industry standard.

    As a separate but equally interesting topic, we'd appreciate greater details on the items mentioned by Biz Randle, including electric utility power electronics and their RF controls, ARRA funded projects in the energy industry, and current distribution grid enhancements. Very interesting stuff, I'd like to learn more about. An open invitation goes out to Biz and other industry folks that might want to contribute to those topics.

    The title of this blog and the leading image have be changed to emphasize no intended equitable relationship between the "Tweet-a-Meter" convenience receptacle gizmo discussed, and state-of-the-art electric utility electronics.

    Thanks much,
    AK

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  • Comment Link Biz Randle Thu Mar 04 2010 11:17am posted by Biz Randle

    Andrew - if you would like to discuss, feel free to contact me via the email address provided and I can respond with full contact info.

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  • Comment Link Andrew Kimos Wed Mar 03 2010 11:41am posted by Andrew Kimos

    Thanks for your comment, it is very helpful. Utility providers using RF interface for service metering and switching is likely worthy of an entire article, as would be 'SmartGrid' and ARRA funds for energy projects. If you have any interest in expanding this discussion into a separate blog or article along these lines, we'd love to have it. I likely contributed to misconceptions by using the (free & readily available) meter photo I tagged to this blog entry. It's not representative of this Tweeting convenience receptacle product in the news (as better seen in the blog's hypertext link). If you wouldn't mind being phone-interviewed for our future article on Energy Infrastructure as part of our ongoing series, please let me know. Thank you, Biz Randle!

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  • Comment Link Biz Randle Wed Mar 03 2010 4:09am posted by Biz Randle

    I think there may be some misconceptions about "internet capable" meters. As part of ARRA and other state regulatory activity, millions of non-communicating electric meters are being replaced with "smart meters". These meters are not so much "smart" as they are "noisy" (i.e. they can communicate data and take some actions on command, like disconnecting and reconnecting a residence from service). Almost without exception, the meters utilize proprietary radio frequency (RF, not an internet connection, to communicate with the electric utility. The meters also use a different form of low power RF (e.g. using the IEEE 802.15.4 std) to communicate to devices in the customers home (i.e. a 'smart thermostat'). The purpose of all this investment is to offer customers the option of paying rates for energy use that differ with the time of day while providing the utility better information as to outages and other grid anomalies. The customer may be able to pass meter data from devices in their home (e.g. the thermostat or the plug monitors the article cites) through their own PC and out to the internet via a tweet or whatever. I am not sure if the public will realize value commensurate with the cost of the investment in the infrastructure but we shall see. Commercial and industrial entities may be able to take better advantage but they have already had some options in this regard. Hope this comment is helpful.

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