we can also not monitor both solar pv production and grid consumption by just one ct clamp.
If you want to monitor the grid, solar inverter, and AC storage together, you need to install 3 energy meters.
If all of them are three phase, then all the energy meter should be 3 phase either.
I do not know why you need 12 ct clamps.
In my opinion, 3 ct clamps ( three 3phase energy meters) are enough.
You just need to monitor the power of solar inverter output, grid, and AC storage, the grid consumption power can be calculated by the three powers.
This is some introduction about how to monitor the solar pv in the IAMMETER cloud.