Hi all,
at the moment I am trying to get my SMA solar power components visualized. I tried 2 days with modbus because the SMA integration does not work here (german user interface). At the moment, I can read nearly everything I need, next step would be the power management of my battery storage.
However, I have one thing that I can not solve at the moment, maybe it is important to know my setup a bit better:
I have 2 inverters (Sunny boy 5.0) and one battery storage (Sunny boy storage 5.0)
All of those systems are providing values about the actual home consumption but none of that values is really ok. While I have no power generation from the inverters and while the battery is discharging, the SBS shows some values. When the battery is then empty, the inverters show again a few values that seem quite right. During the day, all of that devices show strange values - I think because the loading of the batteries plays a role during that time.
Only solution I have at the moment is a big table with many if thens to calculate the total power usage depending on the states of the various systems.
Is there any better way? Any specific value I can use?
I need to know that the house uses in total. Not what it gets from the external power lines - just a sum of all devices drawing power in the house.
Best regards
Roger