Google.org wants to organize your power usage statistics
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:

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.
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