Energy Calculation

[Korol-Yurii]

Perhaps it is possible to "catch" the idle state of the water heater by the help of small calculations between current water temperature and set water temperature. In case current_temperature<set_temperature the water heater is working. The power consumption is also known because it can be of 3 states.
I usually use my water heater only at 2000W. So in configuration.yaml I've created a simple binary sensor to measure power consumption.

`binary_sensor:

• platform: template
  sensors:
  boiler_state:
  friendly_name: Boiler State
  entity_id:
  - binary_sensor.boiler_state
  value_template: >-
  {%- if (state_attr('climate.water_heater', 'temperature')-state_attr('climate.water_heater', 'current_temperature'))>1 -%}
  on
  {%- else -%}
  off
  {%- endif -%}

sensor:

• platform: powercalc
  entity_id: binary_sensor.boiler_state
  create_energy_sensor: true
  mode: fixed
  fixed:
  power: 2000
  name: "Water heater consumption"`

I'm still testing this scenario. Any thoughts about its usability?

[dentra]

I already thought about a similar implementation, but I didn't get around to checking everything )
So if your test was good enough I will implement this feature.