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Originally Posted by N.W.Gypsies
Hi all I was wondering how many think it is better to wire pannels in series or parrell when use mppt controller also if you have it one way or the other thanks
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Be careful with that. Shadows are a big problem and when you shadow one panel in series with another, you can lose the power from both. Then we need to start thinking about the danger of high voltage DC vs 12V. 24V, no problem, but higher?? As somebody else said, series wiring does nothing to help on cloudy days. Kind of like putting a wind generator up when there is no wind. You need energy hitting the panels to get energy out the other side. MPPT does not do a thing if the panels are not producing voltage.