Energy Dashboard (Build in)

[gizmocuz]

So you need to enable websocket support for your NGINX proxy manager (that is just a checkbox)

[sailmich]

Newest domoticz beta is running on RPi 4.
I use node red to collect data for a virtual P1 smart meter in domoticz. The values are plausible and correct in the dummy P1 device. I assume the values from my P1 meter should be equal to the values shown in the energy dashboard. For better understanding appendix screenshot.

Bildschirmfoto vom 2025-04-17 11-29-00.png (121.17 KiB) Viewed 761 times

PV_total is my solar device in energy dashboard. Actual usage and Actual return sending values to P1 virtuell.
The screenshot is from the same moment as you can see of the value from PV_total. Why I got in the energy dashboard 736 Watt to grid instead of 918 Watt from P1 virtuell?

[waltervl]

-918+182=-736

[sailmich]

-918+182=-736

Hello waltervl,
Thank you for your answer, I understand your calculation but I don't understand why you use it.
I don't have a real P1 smart meter, so I don't know how it's working. From domoticz json/api I understand the last two numbers for P1 are for actual usage and actual return. So I interpret that actual usage is going to my house and actual return is going to the grid. I thought the minus in front of actual return is just an indicate that is going back to grid. 1100W = 182W+918W.
When I watch direct of the counter from my supplier I see 918W not 736W.
Can you tell me what actual usage and return is standing for.

[waltervl]

If you have 3 phase grid connection you can have for example usage from grid on phase 1 and return on phase 2 or 3.
It depends on the connection of your solar production and usage devices per phase.

Your P1 viruell meter shows "182 Watt, -968 Watt" meaning that in total there is on some phases in total 182 Watt usage and on other phases in total -968 Watt return to the grid. So nett over all phases it is 182-968=-736 Watt return. And that is shown in the energy dashboard.

If you do not have a 3 phase connection then it is not possible to have return and usage on the same time and then your P1 integration is not correct.

[sailmich]

If you have 3 phase grid connection you can have for example usage from grid on phase 1 and return on phase 2 or 3.
It depends on the connection of your solar production and usage devices per phase.

Your P1 viruell meter shows "182 Watt, -968 Watt" meaning that in total there is on some phases in total 182 Watt usage and on other phases in total -968 Watt return to the grid. So nett over all phases it is 182-968=-736 Watt return. And that is shown in the energy dashboard.

If you do not have a 3 phase connection then it is not possible to have return and usage on the same time and then your P1 integration is not correct.

Thank you very much for the explanation! I have a 3 phase connection, I just took power total from it and sent it to the P1 smart meter.

Bildschirmfoto vom 2025-04-17 20-05-57.png (8.16 KiB) Viewed 735 times

So I will have a look on that tomorrow.
Edit:
Spent some hours without success because my devices use plus and minus. I found a lua script from @psubiaco that did it! Thank you very much.

[Ctenberge]

Hello, I can't find a way to place a new topic and how I have managed to put this, I can't reproduce.
But there is a new problem in my energy dashboard after the new version of Domoticz (Version: 2025.1)
My house does not get any energy as long as the solarpanels produce energy.
Looking at the devices and I see that there is flowing energy (it's obvious of course). in my house
Here are 3 pictures to show
Why has it changed?

[waltervl]

Seems the dasboard solar production gets the wrong data. Are the settings of the dashboard correct? It could also be a changing issue. What if you open Domoticz energy dashboard in a private/incognito browser session?