ESPHome missing support for important device_class

[DrCoolzic]

The problem

Currently ESPHome does not support two very important device classes: “apparent_power” and “reactive_power”. This is very annoying because currently there is no way for a sensor to report values with VA or VAR for unit_of_measurement.
If using device_class=power these units of measurement are rejected for statistical data recording …

In the Sensor Component documentation, it is mentioned that:

device_class (Optional, string): The device class for the sensor. See https://developers.home-assistant.io/docs/core/entity/sensor/#available-device-classes for a list of available options.

But as mentioned two are missing: apparent_power and reactive_power

Which version of ESPHome has the issue?

2022.6.2

What type of installation are you using?

Home Assistant Add-on

Which version of Home Assistant has the issue?

2022.6.7

What platform are you using?

ESP8266

Board

irrelevant

Component causing the issue

irrelevant

Example YAML snippet

- platform: teleinfo
    tag_name: "SINSTS"
    name: "linky_sinsts"
    device_class: "apparent_power"
    state_class: "measurement"
    unit_of_measurement: "VA"

Anything in the logs that might be useful for us?

sensor.teleinfo: [source /config/esphome/linky-tic.yaml:161]
  platform: teleinfo
  tag_name: SINSTS
  name: linky_sinsts
  
  Unknown value 'apparent_power', valid options are '', 'aqi', 'battery', 'carbon_dioxide', 'carbon_monoxide', 'current', 'duration', 'energy', 'gas', 'humidity', 'illuminance', 'monetary', 'nitrogen_dioxide', 'nitrogen_monoxide', 'nitrous_oxide', 'ozone', 'pm1', 'pm10', 'pm25', 'power', 'power_factor', 'pressure', 'signal_strength', 'sulphur_dioxide', 'temperature', 'timestamp', 'volatile_organic_compounds', 'voltage'.
  device_class: apparent_power
  state_class: measurement
  unit_of_measurement: VA
sensor.teleinfo: [source /config/esphome/linky-tic.yaml:168]
  platform: teleinfo
  tag_name: SINSTS1
  name: linky_sinsts1

Additional information

If trying to use power instead of apparent_power

we get error

Please refer to
Add sensor device classes for apparent and reactive power #688 home-assistant/architecture#688

and
Device class “power” should support “VA” and “VAR” units #57236 home-assistant/core#57236

for more info

[probot-esphome]

Hey there @esphome/core, mind taking a look at this issue as it has been labeled with an integration (sensor) you are listed as a code owner for? Thanks!
_{^{(message by CodeOwnersMention)}}

[DrCoolzic]

Hey there anybody looking at this problem?
Badly needed for the Teleinfo component!
Thanks

[DrCoolzic]

Can someone look at this problem. It should not be a big modification to add the two missing device classes :)

[jesserockz]

These were added to dev in esphome/esphome#3624

[DrCoolzic]

Many thanks.
Is this update available on 2022.6.3 ?