The 16 amps per phase threshold equates to 3.68kW per phase. The new G98/NI limit will be based on the certified continuous steady state operating rating of the inverter, subject to a maximum installed generation capacity of 4kW single phase and 12kW three phase. For example, a standard 3.98kWp solar PV installation using a certified 3.68kW rated inverter would be acceptable.