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In terms of raw data, any properly calibrated equipment should be identical.
You could build one yourself or have a look at how to get readings from your actual electricity meter. Both can be found on the open energy monitor project page. If you self build i guess you could use a lower value CT that amplifies lower currents and just not use it at higher loads?
Mains power fluctuates a LOT though so youll definitely need averaging to some extent
This, as well as the fediverse’s double edged feature that stuff pretty much can never be deleted (only “requested”).
This sounds like a privacy nightmare