Hi all,
I'm building an off-grid 24v system. I've chosen 3 of the Sunpower 400w panels.
Using the online calculator, it's recommending the 150/45 MPPT.
But I don't know why it's not recommending the 100/50 - as it seems like a better and cheaper option? (better because of the higher amp rating)
Here's the calculator link:
And here's the panel specs:
I've also tried the older excel version of the calculator, and it also seems to suggest the 100/50 would be better I think, because of the higher amperage.
I've planned to put all the panels in parallel because of the high Voc and low Isc. Am I missing something else here, or does the calculator just not know about the 100/50?
Any help is greatly appreciated,
Dan