Awesome so I don’t need any additional CT’s. Just move these to the Main load panel. Sweet! I will make the change tomorrow after work.
Then I will work on the programming. Although it will likely be a cut and paste lol since that part I don’t understand as much 
If move these I will loose the following you mentioned…
“ENPHASE - the connection to the Enphase Grid Forming System…
ENPHASE - the connection from the All-in one Panel”
Let me know if I need to keep is or move them? I am measuring the Enphase battery and the Enphase Solar" but if I move the 200 Amp CT’s to the panel I will loose the amount going into the Enphase Controller and what it is sending back to the grid.
If needed I can get another set if it will support more.
The ENPHASE unit is a zero sum game. What goes in comes out. So you only need three connections to compute the fourth. I was unsure if the CT shown inside the unit on the line diagram was on the input from the All-in-One or the output to the Panel. The IoTaWatt is near the panel so I said to explicitely put them on the Panel side. Having a direct measure of the panel feed would be better for computing your load most accurately rather than a computed value subject to any variance of three other CTs. If you are saying it is clearly on the All-in-One side, that’s fine. You can add a set of Panel CTs or you can compute PANEL as:
PANEL = ENPHASE + BAT + SOLAR.
With a little algebra you can see that is the same as:
and the recommended:
becomes GRID = (ENPHASE + BAT + SOLAR) - SOLAR - BAT - NHX
reducing GRID = ENPHASE - NHX
The key to this is understanding the relationship between the a line and it’s two connections. It’s like double entry bookkeeping. Every transaction is a credit to one ledger and a debit to another.
Yes it’s on the all-in-one side.
I will order 2 additional 200amp CT’s and put them on the panel. Then I will have a 4th data point.
Once I have it installed I will have you help me with programming everything.
At some point I will move some of the AC coupled solar panels to the NHX inverter to charge the new batteries directly. It supports AC coupled micro inverters. So having another data point might be helpful.
Sorry I have been busy getting everything working. I moved 20 of my Enphase panels/IQ8’s over to my NHX hybrid inverter using AC Coupling. I finally got everything working. Now I need to reprogram my Iotawatt system. I was able to add CT’s to my main Grid-in, on each solar system power-in, Solar outputs and each load panel. Now I need help figuring out how to program. I want to see each system, Total power in and out, total solar production and such. Here is my new line drawing. Iotawatt CT’s are in purple. When I get home I will do screen shots of my current inputs.
