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Motorhome Solar Power System Issue
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<blockquote data-quote="BigWave" data-source="post: 240844" data-attributes="member: 6786"><p>It becomes way more complicated particularly considering the mode of shading (but won't go into that here - checkout vertical vs horizontal shading). "Can kill the whole system" is the correct answer - that's why you were still getting power albeit reduced. </p><p>Protecting the array and maximising its output is what the two types of diodes are for - isolating the shaded cells/panels. If the panels are in series, the bypass diode bypasses the shaded cell(s) with a ~0.7V drop (per series section - there's often many series sections per panel), and if in parallel, the blocking diode just blocks the shaded panel from contributing and prevents reverse polarity damage to it. So, either way, you'd still have output with only a single shaded panel. I've seen some very stupid installations where less than 10% shading kills an entire high power array, and am happy to discuss in another thread.</p><p>Still betting FBF has stuffed battery(s).</p></blockquote><p></p>
[QUOTE="BigWave, post: 240844, member: 6786"] It becomes way more complicated particularly considering the mode of shading (but won't go into that here - checkout vertical vs horizontal shading). "Can kill the whole system" is the correct answer - that's why you were still getting power albeit reduced. Protecting the array and maximising its output is what the two types of diodes are for - isolating the shaded cells/panels. If the panels are in series, the bypass diode bypasses the shaded cell(s) with a ~0.7V drop (per series section - there's often many series sections per panel), and if in parallel, the blocking diode just blocks the shaded panel from contributing and prevents reverse polarity damage to it. So, either way, you'd still have output with only a single shaded panel. I've seen some very stupid installations where less than 10% shading kills an entire high power array, and am happy to discuss in another thread. Still betting FBF has stuffed battery(s). [/QUOTE]
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Outdoor & Recreation
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Motorhome Solar Power System Issue
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