Sum helper from „Group“ lost unit since last update and graph is not showing correctly

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1

Hi, i had a working sum helper from the group section to sum up my home power usage in watts (PV power + Grid power) both single sensors show up correctly but since the last 1 or 2 updates the unit is missing from my sum and therefore also the graphs look strange. See screenshots.
I could not find a setting for the unit so I don’t know how to fix it, also I don’t want to lose data of this sum and make a new one in yaml (running since a year)
Thanks a lot

Problem:

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Also made an issue on GitHub but no comment so far, anybody else facing this problem too? Thanks

2

Had still the same problem after the newest update today.
But i found a temp fix: in the group option i added an other power sensor (a Shelly which was off) to the sum. Applied it. Then the unit appeared again. Then i removed it again and the unit stayed but after reboot was gone again :frowning:
Then i tried to swapped the order of the 2 sensors that the Shelly is first then my sensor which is a sum helper also, but still the unit is gone after reboot :frowning:

Any ideas what i could try or how to debug the problem further? Does it try to make the unit of this helper before the other helper is up and running or something like this? Thanks

3

Still the same bug after the newest update :frowning: is this the right place to post this problem? Thanks

4

Still same bug with Core 2024.7.2 :frowning:

5

Hi, I think this is a similar Problem to mine: I would like to calculate the Power of each string of my PV. So I created a sensor group helper with the product function of the PVstring voltage and the PV string current. The value is calculated fine, but I get an Error, that these sensors do not have the same unit (clearly) and I wanted to change the unit to watt, wich was not possible for me…? any clue how to do this, or could you solve your problem?

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6

I have the same sensor Group to calculate power,as well. Did you find a way to set units?

Update/ I ended up making a template to compute power and format it…

- name: "Inverter DC Power"
  unique_id: "inverter_dc_power"
  state: '{{ ((states("sensor.none_dc_current") | float(3)) * (states("sensor.none_dc_voltage") | float(3))) | round(0) | string +" W" }}'