Wattage before I turn on the device?

1

hi, I want to ask, is it possible if the home assistant when the smart device (such as smart breaker, smart switch) can find out the wattage of the devices connected to this smart breaker/smart switch on the home assistant, before the device is turned on.

or maybe there is a smart device that needs to be added to help solve my problem

Thank you in advance🙏

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No, it’s not realistically possible. There is no method to probe the circuit for the load beforehand.