Subscribe to EDN

Google.org wants to organize your power usage statistics

February 10, 2009

There is a truism in managing resources: You can’t improve anything you can’t measure.** Google.org, the philanthropic side of Google,  says, “We believe that everyone deserves access to their energy information to make smarter choices about energy use.” So Google is developing software that allows everyone to display their home power usage right on their google homepage, like so:

 Google Powermeter display

The only catch is that the Google Powermeter depends on the user having a smart power meter. Currently there are about 40M smart power meters worldwide, but power utilities are planning to add another 100M within a few years.

These are the IC vendors I know of so far who have microcontrollers specifically targeting power meters: TI, On Semi, Maxim, Analog Devices, Teridian, and Ev2. And in addition to a microcontroller, every meter will need a current/voltage sensor (shunt, inductive, or Hall effect),  a power backup battery/supercapacitor, and a communication interface. Smart meters will be another growing market for the electronics industry.

** The Google youtube video  attributes this (paraphrased) quote to Lord Kelvin – Kelvin, as in the Kelvin scale of absolute temperature measurement. How appropriate.

Posted by Margery Conner on February 10, 2009 | Comments (8)

April 16, 2010
In response to: Google.org wants to organize your power usage statistics
Buy Cialis commented:

clintons upkeep discharged visarules adapt maximises abused claire underground friends plate


February 23, 2009
In response to: Google.org wants to organize your power usage statistics
Lchien commented:

I for one would be very interested in knowing my usage patterns. This privacy issue is being overated - who cares and who cares if they know? I suppose if you were running a pot greenhouse in your home your energy patterns would show it... I guess a laptop and a clamp-on meter would do the job.


February 17, 2009
In response to: Google.org wants to organize your power usage statistics
Anon commented:

"Citizen X1Z5, the environmental commissariat allows 1 hour of television viewing a day. You have gone over your limit by 5 minutes. Report to the re-education camp Monday morning for 1 year of re-indoctrination."


February 17, 2009
In response to: Google.org wants to organize your power usage statistics
Chris commented:

Anyone fairly skilled in electronic engineering, as many of the readers here are; could come up with their own system that would do the same on their personal laptop, while maintaining privacy. Just measure RMS amps (using a clamp-on loop?)and volts, multiply together, and store the value. There are A-to-D packages that will interface to a USB port. The main problem is that the laptop must be connected during the period of time you want to make the readings. This can be solved with a dedicated memory storage unit, but now it starts getting more complicated. There are probably already pre-made units on the market to do this, but I didn't have time to do a seach.


February 12, 2009
In response to: Google.org wants to organize your power usage statistics
arclight commented:

1. What transports the data from the meters? If it's HF BPL, then in the name of energy conservation we are polluting irreplaceable RF spectrum for short-term benefit. Isn't that the same argument made against other pollution??? Would like to see another transport mechanism that makes better use of spectrum. 2. Those concerned about BB and privacy might as well surrender. Didn't you figure out already that BB BUYS the data it needs from commercial entities, who are already busy collecting it? Wanna opt out? Fine...the fact that you did is easily correlated from comparing tax rolls to opt-in participants. If your existence is recorded ANYWHERE, then your behavior is reasonably-well discerned not only from where else you ARE recorded, but from where else you are NOT.


February 11, 2009
In response to: Google.org wants to organize your power usage statistics
Joe commented:

For those of you so concerned that "big brother" is watching you, consider the math. There are 300 million Americans and if someone devoted 1 second of "watch time" per person, it would take over 9 1/2 years to watch each person in this country. Even our own government isn't THAT wasteful of our money.


February 11, 2009
In response to: Google.org wants to organize your power usage statistics
Anon 2 commented:

Is this legal? The only parties who should be privy to the usage info is the power company and myself - not some nosy neighbors/surfer or some govt entity.


February 11, 2009
In response to: Google.org wants to organize your power usage statistics
Michael J commented:

The Power Companies knows what your power usage currently and your history of usage - that's how they plan their generation for each day. What makes you think they don't share YOUR information with "others"? If you are worried about a Big Brother watching you, generate your own power! I believe this would be a good tool to help you analyze your usage and help you cut your costs for electricity.

POST A COMMENT
Display Name
captcha

Before submitting this form, please type the characters displayed above. Note the letters are case sensitive:

Advertisement
Advertisement
Advertisement
About EDN   |   Site Map   |   Contact Us   |   Subscription   |   RSS
© 2012 UBM Electronics. All rights reserved.
Use of this Web site is subject to its Terms of Use | Privacy Policy

Please visit these other UBM Canon sites

UBM Canon | Design News | Test & Measurement World | Packaging Digest | EDN | Qmed | Pharmalive | Appliance Magazine | Plastics Today | Powder Bulk Solids | Canon Trade Shows