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Is there a way to turn off the Wireless AP that the Solarman data logger has created? e.g. "AP_xxxxxxxxxx"

@kellerzaDo you have a list of sensors or an easy way to include all available? EDIT: I've been able to manually grab all sensors from the definitions.py file and underscore them.

I'm wondering if it's not electrical interference or the distance. The distance between my CT and inverter is between 15-20m using unshielded CAT5e.

Yes, I believe so. That would at least match the inverter display. How far is your Grid CT coil from your inverter?

@kellerza Thanks for looking at this. I've just realised I've made a mistake though. I repeated my steps again, and the inverter screen is also incorrect - just not negative. When I turn the kettle (essential circuit) on, the inverter defaults to 0 W. When the kettle turns off, the 28W shows up on non-essential again. Based on your observation regarding the SMA meter vs SS delta - I don't think there is much we can do about it.

@kellerza Thanks. I gave that a try, with 0 W non-essential load, and this is what the result was: The actual non-essential load in this case was supposed to be 0 W. Here is another, in this case non-essential should be 28 W.

@kellerza Thanks for putting addon together. I've got this strange issue with the essential/non-essential load calcs. Let's say I have 28 W on my non-essential (stove light), I then switch my kettle on, which is on my essential circuit. The essential calc comes to 2712 W, and then non-essential falls through the floor, to like -42 W etc. This only seems to happen when I put a higher load on the essentials side, when the kettle goes off the calc add up again. If I take a look at the inverter screen at the same time, I've got 2712 W on essentials, and 28W on non-essentials. It seems something breaks or is missing from the calc.

@JGB Check on your inverter under Advanced -> Multi-Inverter. If Modbus SN is set to 00 change that to 01. This solved my timeout issue. Edit: Likely not given you have an adapter that works.