Energy: Electricity grid consumption from an MQTT power entity?

1

Hello. I’m trying to use the “Energy” feature. I’m trying to configure Grid consumption (Configuration / Energy / ADD CONSUMPTION). Power is obtained from an mqtt sensor relaying power. I keep getting “No Matching statistics found” in the Consumed Energy (kWh) drop down. My confg:

- platform: mqtt
  state_topic: emonpi/power
  name: Power Use
  unique_id: emonpi_power
  state_class: measurement
  device_class: power
  # unit_of_measurement: "W"

- platform: integration
  source: sensor.emonpi_power
  name: energy_use
  unit_prefix: k
  round: 6

This is the arrangement that I’ve seen reported elsewhere as working, but it’s not working for me.

Can anyone shed any light? Thank you.

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sensor.power_use

3

Many thanks. There is no entity sensor.power_use on my system. I changed it in case there was some magic behind the scenes, but it still shows “No matching statistics found”.

4

Check state at Developer Tools

5

Check the state of what? Both sensor.power_use and sensor.energy_use are available and registering data. Neither are available as a source of statistical data for grid consumption configuration. I appreciate your time, and admire brevity as much as anyone, but your comments are a little too cryptic for me to follow. Thank you again, though

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6

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7

This:

- platform: mqtt
  state_topic: emonpi/power
  name: Power Use
  unique_id: power_use
  state_class: measurement
  device_class: power
  unit_of_measurement: W

- platform: integration
  source: sensor.power_use
  name: energy_use
  unit_prefix: k
  round: 6

is, in Developer Tools / State Attributes, generating this for sensor.energy_use:

state_class: total
source: sensor.power_use
unit_of_measurement: kh
friendly_name: energy_use
icon: mdi:chart-histogram
device_class: energy

I’ve no idea why unit_of_measurement is kh, not kWh as in your example, but I’m guessing that’s why it can’t find an energy statistic. Do you know what I’m doing wrong?

8

If a restart dont help. change to


- platform: mqtt
  state_topic: emonpi/power
  name: Power Use A
  unique_id: power_use_a
  state_class: measurement
  device_class: power
  unit_of_measurement: W

- platform: integration
  source: sensor.power_use_a
  name: energy_use_a
  unit_prefix: k
  round: 6

Another solution it’s to edit database. Cannot help on that.

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9 
state_class: total
source: sensor.power_use_a
unit_of_measurement: kWh     <------ :)
friendly_name: energy_use_a
icon: mdi:chart-histogram
device_class: energy

I think that fixed it. I could select sensor.energy_use_a. It’s currently reporting that “statistics_not_defined”, but I assume it’s currently aggregating and this will become available.

Thank you for your help!

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