Hi community,
inspired by the dbus-shelly-3em-smartmeter from @fabian-lauer, I created my own dbus-shelly-1pm-pvinverter GitHub project to use a Shelly 1PM in VenusOS as a PV inverter. Maybe some one else find it useful.
Here are some screenshots from my current setup with these three Shelly devices (2x1PM and 3EM):
I have configured a Shelly Plus 1PM in VenusOS V3.11. Under settings I see the Shelly device and power consumed etc, but on the main pages screen "AC Loads" does not show any data. Why would the device under settings show power but the main screen shows no data in the "AC Loads" box
I spent some time looking at this today. I believe that service type of pvinverter is for power generation. I modified the python script to use a service type of inverter. This adds the AC consumed power to "AC Loads". I have only tested this with a Shelly Plus 1PM. Give it a go and see if it works for you.
To install save then replace the python script /data/dbus-shelly-1pm-pvinverter01/dbus-shelly-1pm-pvinverter.py with the enclosed dbus-shelly-1pm-pvinverter.py python script.
Nice.... I will give it a try. I can run a diff, but which changes did you made?
There were actually quite a lot of changes. Most of the changes were related to dbus path name changes. Recommend you do a diff to see all the changes. I currently hard code the /Mode dbus path. I need to get this information from the shelly device itself but at least the AC loads are now reported.
The changes I made was to add support for AC load monitor. My changes would not work for an AC Input. I just made a quick proof of concept script for an AC Input monitor.
To install, save then replace the python script /data/dbus-shelly-1pm-pvinverter01/dbus-shelly-1pm-pvinverter.py with the enclosed dbus-shelly-1pm-grid.py python script.
Great - I'll try the next time when I go to the marina.. season is now at the bitter end, the boat packed and stuffed away. Just 5 months to wait for sailing again. Anyway, I will check it out in a few days :-)
seems like the AC input is displayed/added as an value in both AC input and AC Loads. When I switch on the TV the value in the AC Loads increase by 40w - added to the 341w (total 381w). This is not correct as the value should only be 40w. The script is adding some miscalculations to the AC Loads. Also the "AC Input" text in the red box is gone.
Maybe it is too much changes needed as this script was originally written for Inverter use
Does it also support the Shelly Plus 1, which can be used in 12V systems like boats and motorhomes?
Was working like charme :-)
I added 5x Shelly 1PM Plus.
I took the script from here and used bitvise ssh client.
https://github.com/Halmand/dbus-shelly-1pm-and-pm1-Plus-pvinverter-multi-instance
Just copy the script and change the name of the PVinverter before installing.
Adjust the config.ini e.g. like this
!!! Check the deviceintance is not used by another device
I chose 41,42,...
Take care to change position to 1 if connected on the critical load side
Also you should change the update Intervall from 250ms to 1000ms. Otherwise you will overload the GX device communication resources.
Result :-)
