I first heard about the Open Source Energy Monitor from Alexander Bischoff at Open4Energy. We've covered all sorts of home energy monitors, and through our coverage and our own experience we’ve been able to get a good feel for what works… and what doesn't.

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Google has signed on smart-meter manufacturer Itron and eight utilities to support Google's PowerMeter Web service.

Update: Google has decided to discontinue this service - Post left in place as a memory of what could have been - The cynic in me wonders why they have done this. Could it be that there was not enough interest to drive the traffic they want?