Energy Dashboard sensor missing device_class; how to add

Configuration
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1

Enery dashboad configuration, individual devices gives me an error:
Unexpected device class:
The following entities do not have the expected device class: sensor.auto_charged
The sensor.auto_charged is a an ‘integration’ in my sensor configuration:

sensor:
  - platform: integration
    source: sensor.autoladen_in_w
    name: car-charged
    unit_prefix: k
    unit_time: h
    round: 2

According the reported fault the sensor should contain a device_class.
I’v added the line below:
device_class: energy
But when I restart HA it comes up with an error that this sensor is not correctly configured.
No idea what to change. Thanks for your help

2

Does sensor.autoladen_in_w have a device_class power ?

I believe it will be correctly inferred by integration based on the source entity device class. The device class for the integration helper itself is not directly settable.

3

Thanks to point in the right direction.
I’ve added

device_class: power

tot the sensor.autoladen_in_w and the error is gone in the energy dashboard setup.