I think it should probably be noted that this analysis is for grid-attached solar, not grid-independent. For the first, you're generally not going to care about

I think it should probably be noted that this analysis is for grid-attached solar, not grid-independent. For the first, you're generally not going to care about the seasonal power profile (you get paid the same for a kW in June or January) and so the north-facing array's production being more heavily loaded into the spring and summer months won't matter. But if you're trying to actually power your house, you probably want all the power you can get in the winter months. Optimizing for minimums, not totals, if that makes any sense...