For the nerds/dweebs/wonks among us, came across this article:
It's pretty simplistic and tested household arrays, but has some overall interesting information.
The comparison was string (series) connected arrays vs. single
modules with a micro inverter
on each module. While we won't be using micros (anytime soon), we can still draw some conclusions from the string/non-string results.
One thing I noted was the finding that MPPT
controllers can't always find the maximum power point in shaded conditions because there may be two or more solutions to the equation. They suggest only a 2% hit, but still something to get a little more study.