I can buy a new fronius IG Plus 3.8-1 inverter about $200 less than the smaller 3.0-1 inverter. Does this make sense when the smaller inverter would work? Maximum usable amp input for the 3.0 inverter is 14 amp which limits me to 1 string.of 16 panels I plan to use. With the 3.8 inverter I still would be limited to the 16 panels in one string. The fronius inverters have 3 power stages and use only as many stages as needed. Do you think the output would be the same for the 3.8 inverter as the 3.0 inverter? The 3.8 inverter The 3.8 inverter can use 17.8 amps which would let me have 2 strings of panels if I decided to add more panels. solarvic
No announcement yet.
Buying bigger inverter than needed.