Energy consumption and generation

Configuration
#1

Hi folks,

Anyone had any experience with using a sensor template that does the following:

  1. If sensor value is positive (not negative value) then that should go under Current demand sensor
    1a. If the value is negative then it should be 0.

  2. If the value if negative then we want that to go to Export sensor but as a positive value (e.g if -4.3 then convert to 4.3)
    2a. If value is is positive then it should be 0

Import:

sensor Meter:

  • platform: mqtt
    state_topic: “raven”
    name: “Current Demand”
    state_class: “measurement”
    device_class: “energy”
    unit_of_measurement: ‘kW’
    icon: mdi:flash
    value_template: >-
    {% if “demand” in value_json %}
    {{ value_json.demand }}

Export:

sensor Meter2:

  • platform: mqtt
    state_topic: “raven”
    name: “Current Export”
    state_class: “measurement”
    device_class: “energy”
    unit_of_measurement: ‘kW’
    icon: mdi:flash
    value_template: >-
    {% if “demand” in value_json %}
    {{ value_json.demand }}
{"demand": -4.35, "raw_demand": -4350, "multiplier": 1, "divisor": 1000, "timestamp": "2021-12-01T13:14:53Z"}
#2

https://community.home-assistant.io/t/how-to-help-us-help-you-or-how-to-ask-a-good-question/114371#oneone-format-it-properly

name: “Current Demand”

value_template: >
  {% if "demand" in value_json %}
    {{ 0 if value_json.demand <=0 else value_json.demand }}
  {% else %}
    unknown
  {% endif %}

name: “Current Export”

value_template: >
  {% if "demand" in value_json %}
    {{ 0 if value_json.demand > 0 else value_json.demand|abs  }}
  {% else %}
    unknown
  {% endif %}
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#3

Hey thank you!

That worked perfectly. And thank you for the tip on how to ask for help too.

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#4

How often is this false?

{% if "demand" in value_json %}
#5

Should only be false if there is connectivity issues to the smart meter via zigbee.

#6

Ah ok. If it was a common occurrence you could have set it to the last value, but as it is an uncommon occurrence better to leave it as unknown so you know when there is an issue.

1 Like