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Alternative Power
How many panels - question for experienced users
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<blockquote data-quote="Den123" data-source="post: 1158246" data-attributes="member: 13454"><p>That 41V rating seems low. You need to watch out for the open circuit voltage (Voc). This value is approached as the load is reduced (as in fully charged batteries). Most panels are about 50V oc these days. I would check this before putting any more panels in series. I have already experienced over-voltage on sites. It is an interesting thing: It happens on cloudy rainy days. As the heave water-laden cloud moves aside, the sun rays fall directly onto the panel, as does additional sunshine refracted and magnified through the edge of the cloud (water acting like a magnifying glass). Seen it happen - it is a thing.</p></blockquote><p></p>
[QUOTE="Den123, post: 1158246, member: 13454"] That 41V rating seems low. You need to watch out for the open circuit voltage (Voc). This value is approached as the load is reduced (as in fully charged batteries). Most panels are about 50V oc these days. I would check this before putting any more panels in series. I have already experienced over-voltage on sites. It is an interesting thing: It happens on cloudy rainy days. As the heave water-laden cloud moves aside, the sun rays fall directly onto the panel, as does additional sunshine refracted and magnified through the edge of the cloud (water acting like a magnifying glass). Seen it happen - it is a thing. [/QUOTE]
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How many panels - question for experienced users
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