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You can also track your neighbors' energy usage by decoding their smart meter transmissions (around here, they transmit about every minute). https://github.com/bemasher/rtlamr

I can read about 40 smart meters from inside my home using the antenna that comes with it.

Is there an easy way to confirm which one's yours? Serial number visible from the exterior of the meter e.g.?

yes, the serial number is printed on the outside of every meter (so you can use a telescope to read your neighbor's meter serial number)

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