Mixing solar panels of different wattage

[Econger]

I have a camper van with 2 each 50w solar panels and 3 each 100w solar panels all having similar characteristics (18/19v) aside from the obvious wattage difference. What is the best (most efficient) way to wire these. They are currently all wired in parallel to a PWM solar controller.

I will be installing a Victron MPPT 100/30 solar controller. Should the 50w panels be wired in series and then in parallel with the 100w panels which are also wired in series? Or should the 50w panels be wired in series then wired in parallel with the 100w panels? Or something else?

Any help or explanation would be greatly appreciated

 

[timselectric]

If the voltages are ~ the same.
Then I will assume that the 50w panels are 1/2 the amperage of the 100w panels.
You could put the two 50w in parallel, then in series with one 100w. (String 1)
Then put the other two 100w in series . (String 2)
Then put the two strings in parallel.
This is about as good as it can be, with what you have.
I think. lol

 

[Econger]

This actually makes sense to me based on my research. I understand what happens in series and what happens in parallel, but I could only find online an example where someone had 2 each 50w and 2 each 100w, so the suggestion was to series the 50s and series the 100s then parallel together (each string being ~36v). But having 3 each 100w, I couldn’t get the volts to match. Thanks.