mppt vs pwm

Salvo wrote:
I don't know what you're talking about.

In my scenario, some panels or a part of a panel has full sun while other panels or parts of panels are in shade. There are two types of shade. Some shade will cause the bypass diodes to conduct while with "soft" shade they will not conduct. If the diodes do not conduct then series is in a world of hurt.

jrnymn7 wrote:
Sorry Salvo,

By "shade", I meant partial obstruction, not low light/clouds.

I think someone told me an obstruction could shut down my entire array, if in parallel? (But I could be mistaken)

Yes, thus my confusion... From what I can recall, I've been told that an obstruction, i.e; deep partial shade (from a rooftop antenna, or a rooftop a/c unit, or a nearby tree branch or building, etc., will cause excessive power loss if the array is in 1) series and 2) parallel.

I'm trying to find out which configuration will suffer more in such a circumstance, series or parallel?