[awqrre]

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.

[wyldfire]

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

[awqrre]

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)