emily, blinkenlight witchOct 27
Something in my house is sucking a *lot* of energy and I would like to find it and make it stop doing that. Anyone have specific recommendations for multi-circuit power-usage-tracking devices? (I have 13 240V and 18 120V circuits across three panels, suggesting I will probably need three such devices; the most populated panel has 10 120V and 2 240V.)

Other requirements: ideally #homeassistant compatible, not internet based (currently have devices on zwave and non-internet-facing wifi, adding zigbee soon for unrelated reasons), works with normal US split phase power. Assume I am a reasonably competent electrician and am comfortable putting a current transformer around a wire.

#homeautomation
Show threadDaniel LakelandOct 27

@emily
Question for clarity. Is it a lot of power (very high rate of usage) or a lot of energy (large bill each month?). If its high power there are likely only 5-6 devices in your house it could be. Electric oven, dryer, HVAC, some big motor, EV charger etc. And it'd be on a beefy high amp circuit.

If its a lot of monthly energy then it could be something more moderate but that runs almost continuously... A computer sucking down 500W but 24hrs a day, a space heater with a broken thermostat...

Show threademily, blinkenlight witch
@dlakelan Energy. Edited for clarity, thanks.

I do not have the data yet to say whether it's high power or just continuous moderate power.
Oct 27 at 3:47amWeb
Show threadDaniel LakelandOct 27
@emily
Where I am in California the power company uses smart meters and you can download power usage data every 15 minute period for many weeks. You could find out if you have a high baseline load or a bunch of intermittent usage that way. Do you have something similar?
Show threademily, blinkenlight witchOct 27
@dlakelan I have hour-level data that's delayed by a day or so. Not fast enough to do real-time experiments, but I did stare at it for a bit and it looks reasonably continuous at that level.
Show threadDaniel LakelandOct 27
@emily
Thats pretty low pass filtered, but it should tell you like what's the lowest and highest rates of consumption. If the usage never drops very low then probably you have some constant usage devices. If it does drop fairly low but also rises high then maybe AC, heating, or cooking etc. Can you plot a week worth of the data? Or compare a hot day to a cold day.