OK, I’ll try my best. On the basis that your diagram uses red for the three phase conductors and blue for the neutral…
You bought two c.t’s too many. A c.t. on the neutral will only tell you the vector sum of the three phase currents - which doesn’t mean much to you. Ideally, when everything is balanced across your three phases, that current should be zero. You’d have saved some money if you’d asked first.
The PV infeed is single phase - is that correct?
Are there four cables there, or two twin cables? If you put your c.t. around a twin cable containing both line and neutral conductors (see the photo on that page you link to), you will not read anything except noise. What are the individual powers, and how do they relate to the inverter displays?
You don’t mention a.c. adapters? Do you have an a.c. adapter for each emonTx and for the emonPi? The a.c. adapter is absolutely essential for the emonTx’s, without it the software cannot lock to the mains wave and so cannot measure the powers. You might be able to get away without an a.c. adapter for the emonPi, but what you measure will be a best guess at the apparent power, based on an assumed constant value for the voltage, not the real power.
Have you read the documentation that comes with the 3-phase sketch and set up the emonTx’s according to that? Update to 3-Phase PLL sketch - #21 by Robert.Wall .
I take it you didn’t buy a programmer, so you won’t be able to make any changes to the software.
If your diagram is accurate, i.e. you are measuring the house consumption on the house side of the point where the PV is connected and you’re measuring the PV input entirely separately, you have a “Type 1” set-up.
If you were to move the three c.t’s so that they are on the grid side of where the P.V. connects, you would have a “Type 2”.
The names “Type 1” and “Type 2” are OEM’s own, and relate to the values you know and how you arrange the equation [Total Use] = [Grid] + [PV].
In a “Type 1”, you measure [Total Use] & [PV], and derive [Grid].
In a “Type 2”, you measure [Grid] & [PV], and derive [Total Use].
Note, we measure imported, used, and P.V. generated powers as positive.
In terms of the diagram, you must sum the set of three phase powers measured at “Main Sw house” to get [Total Use] or (power1) in the description, as a single Feed; and likewise sum the two PV powers to get [Total PV] or (power 2) before you can use them in emonCMS “My Solar”.