Entity Group Individual Devices?

[yaplej]

Hello,

I want to add HVAC to my Energy Dashboard for usage. Its not a single device though I have multiple HVAC units that are all monitored via Emporia Vue 2 Sensors. Is it possible to create a logical entity/group sum up all the individual devices that are named "HVAC: *" and display that total as a single entity?

Maybe there was an example that showed an Entity of "Lights" but I could not tell if that was just a single device monitoring one light or if it was a group that added a bunch of individual devices together.

[yaplej]

I think that I got it figured out. Ended up using a template to add all my sensors together.

My grid power is monitored through 2 Emporia Vue 2 sensors so I need to add them together. This seems to be done automatically by the default Energy Dashboard but not an option here.

In my configuration.yaml file I added this:

sensor:
  - platform: template
    sensors:
      vue_total_energy:
        friendly_name: "Energy (total)"
        unit_of_measurement: "kWh"
        value_template: '{{ states("sensor.main_left_123_1d") |float + states("sensor.main_right_123_1d") | float }}'

https://community.home-assistant.io/t/calculate-sum-two-entities-to-one-sensor/182063/27?page=2

That allows me to use the collective power usage as a single Entity in the card.

Next I just need to figure out if there is a means to do this typically based on the Friendly Name and Device type so any Device with "HVAC:" in the name would get added up to display as a Usage Entity on the Card.

[yaplej]

So I got this working today by using a Dynamic Group Automation Blueprint.
https://community.home-assistant.io/t/create-a-group-with-either-dynamic-or-with-static-members/361672

I was able to create a single group that contained all of my 1 day usage sensors from the Emporia Vue devices. The cool part is this gets updated automatically when I add a new device named HVAC: to my Emporia account.

Then I created a template to aggregate those into a single value in my configuration.yaml
https://community.home-assistant.io/t/how-to-use-expand-function-in-sensor-template-to-sum-all-state-of-a-group/136791/5

sensor:
  - platform: template
    sensors:
      vue_hvac_energy:
        friendly_name: "HVAC (total)"
        unit_of_measurement: "kWh"
        value_template: >-
          {{ expand('group.vue_hvac_all') | map(attribute='state') | map('float') | sum }}

Finally I used that as an individual entity to the Power Flow Card that represents all the energy/power used in my home.

[mpgjon]

This is great! Thanks! In the template, you have the value vue_hvac_energy as the sensor name; where is that derived from? The blueprint group name or?