Hi,

I bought second meter especialy for my PV instalation (three phase)

Question, do I shoud choose Net metering mode or not? In first meter I have turn on Net metering mode.

Maciej

Hi:

The net metering mode only exists in the meter in the grid side. if you install it in the inverter side, there is no net metering concept there(You do not need to set net metering mode in inverter side).

If you install the meter in grid side, whether it needs to be set in metering mode depends on your electricity provide policy. You need to confirm this with them.

This is a brief introduction about the net metering mode 

https://www.iammeter.com/docs/net-energy-meter