Best Way??
I have 4-Canadian SC6P-220w Panels with the following spec's, Pmax=220W Voc =36.60V ISC =8.09A VMP =29.30V Imp =7.52A Voc-coef =0.1281V/C Noct =45.00C 15A fuse rating/series Per actual meas...
Forum Discussion
Don
I have one 220w panel and run it with a inexpensive yet functional 20a MPPT controller.
BFL
It could be a number of things. The mono is better at producing Voc but its Isc, Imp, Vmp and footprint are all smaller than the poly. The Mppt is working because I'm seeing 12a with a panel rated at 8.09a Isc.
Maybe a different controller would extract more out of the higher voltage, maybe not. I've come to the conclusion that mono IS more efficient but only because it can hit its ratied output with a smaller foot print. Great for grid tied, on a roof with full sunlight. Not so good for us RV'rs when we need the amps in low light. There the larger footprint of the poly panel has the advantage.
I have one 220w panel and run it with a inexpensive yet functional 20a MPPT controller.
BFL
It could be a number of things. The mono is better at producing Voc but its Isc, Imp, Vmp and footprint are all smaller than the poly. The Mppt is working because I'm seeing 12a with a panel rated at 8.09a Isc.
Maybe a different controller would extract more out of the higher voltage, maybe not. I've come to the conclusion that mono IS more efficient but only because it can hit its ratied output with a smaller foot print. Great for grid tied, on a roof with full sunlight. Not so good for us RV'rs when we need the amps in low light. There the larger footprint of the poly panel has the advantage.
