bartalz

Thank you for your feedback!
I was able to set this up. Now it is running really good and I'm impressed also. It was a need to improve my knowledge about HomeAssistant/MQTT/DOCKER/DEBIAN, however it was worth it. I will describe in short what I did, if somebody want to do the same, maybe you don't need to read/watch so much...
1. I used an old laptop what I had in house, however you can use anything similar to raspberry pi.
2. Installed Debian on the machine
3. Installed Home Assistant Supervised -> while with this option you have full HA and the hardware you can use also for other things (compare to operating system)
4. Created an MQTT broker -> HA\Integration, really good tutorials on YouTube.com
5. Created InfluxDB and Grafana ->HA\Addon, really good tutorials on YouTube.com
6. Downloaded the docker-must-homeassistant. From GitHub: https://github.com/dylangmiles/docker-must-homeassistant
7. Edited the mqtt.json to my server and credentials created in point 4.
8. Compiled the Docker image downloaded in point 6 and Started based on description
9. Connected my laptop to Must inverter with the cables and after few seconds the Sensors value was updated in SA and Stored in InfluxDB. After I just created a Dashboard in Grafana.

To summarize for the the people who want to have similar setup (basically it works based on documentation):
1. With SBU/LBU/OSO setup it is not possible to feed just solar energy back to the grid. It will take/drain also the batteries.
2. In SUB/LBU/OSO it is possible to feed back just the solar power, however in this setup the battery is just active when utility power is not available
3. in SOL mode you can't use setup 9 feed back to grid, more island solution, with bypass possibility.
I tested out all of this options. Thank you for your comments.