This is neat. I had vaguely heard of the RTL-SDR, but this is a cool example of a potential application. A few points of note: The author starts off by discus

This is neat. I had vaguely heard of the RTL-SDR, but this is a cool example of a potential application. A few points of note: The author starts off by discussing how the Sense energy monitor piqued his interest, but he didn't want to go through the trouble of installing it. My understanding is that Sense offers granular usage data down to the appliance level, which reading polled usage off the meter simply won't do. So this isn't a solution that replaces what Sense offers. And... doesn't your power company already offer you this data? APS here in Arizona does, down to the hour, with the ability to easily export as CSV. But I'm sure plenty of utilities don't offer that, and this is a cool way to read it.