Am looking at 2 panels options to connect to a Solis EH1P 6kW inverter. The inverter has 2 MPPT inputs with 120V start-up, MPPT voltage range of 90-520V and Max. input current 15 A.
One of the strings will only have 6 panels in it.
Am considering two different makes of panels (each 430Wp):-
One (Trina) has max power at 42.3V & 10.17A.
The other (Longi) has max power at 32.84V & 13.10A.
Would there be, in real-life usage, any reason to choose one panel over the other?
The higher voltage panels will generate a voltage that sits further up the inverter's MPPT range and my gut feeling is that would result in better performance. Or, is the "performance" of an MPPT tracker so good it works just as well at any voltage? Also, I am wondering whether a higher PV voltage would result in better efficiencies in converting PV input to the internal DC bus?
Obviously there will be less DC loss at 10A, rather than 13A, but the distance between panels and inverters is going to be quite short.
One of the strings will only have 6 panels in it.
Am considering two different makes of panels (each 430Wp):-
One (Trina) has max power at 42.3V & 10.17A.
The other (Longi) has max power at 32.84V & 13.10A.
Would there be, in real-life usage, any reason to choose one panel over the other?
The higher voltage panels will generate a voltage that sits further up the inverter's MPPT range and my gut feeling is that would result in better performance. Or, is the "performance" of an MPPT tracker so good it works just as well at any voltage? Also, I am wondering whether a higher PV voltage would result in better efficiencies in converting PV input to the internal DC bus?
Obviously there will be less DC loss at 10A, rather than 13A, but the distance between panels and inverters is going to be quite short.