> I assume that relates to using many MPPT controllers to
> drive a single battery.

Same assumption.. I'd thought of something like this before, but it
seemed that the controllers could interact and basically go nuts as
each interferes with it's neighbors. I guess if you limit the
excursions to some reasonable value, and limit how often you change,
it could be stable. Or maybe I'm overly paranoid. :)

Similar to windmills, where the power adjustment can cause
oscillations in the blade structure, which feed back till something
breaks.
More scary that way though.
-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist