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Great post for someone new like me. I have 9 Jinko 540W panels (46.5V with 0.28%) to connect to a eg4 6000xp (I hope). Temps here fall to -25C in the winter. This limits me to a max of 8 panels so I'm looking at a 3x3 series/parallel array with each string running 144 volts. This increases the...

Or ... 8 on the first, buy 3 more and 4 on the second with room to add later?

I have 9 Jinko 540W panels (46.5V with 0.28%) to connect to a eg4 6000xp (I hope). Temps here fall to -25C in the winter. This limits me to a max of 8 panels so I'm looking at a 3x3 series/parallel array with each string running 144 volts. This increases the current and I'm trying to understand...