Forum Discussion
BFL13
Nov 07, 2014Explorer II
jrnymn7 wrote:
I'm looking at something like this:
http://www.eco-worthy.com/catalog/mppt-series-complete-200w2100w-grid-systems-with-mppt-controller-p-325.html
??? Will the 20a mppt work o.k.with the 12 volt panels?
The problem is that 42Voc (recently also seen as being 45v) limit of the controller.
Two of those 100w panels with 22Voc each in series as a "24v" array maxes out the controller. If you go over that Voc limit it fries, no second chance! In parallel as a "12v" array, the controller has little extra voltage to buck more amps from but as least it would work.
I have that controller ($102) so the panels in that kit are $198 for the pair.
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