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Green Renewable Energy Forum
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Relative Low Performance of Domestic PV System
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<blockquote data-quote="Joules" data-source="post: 537546" data-attributes="member: 35656"><p>Thank you and well done! Can you please provide us with a pic of the exact model of inverter, there is a label on the side. The reason why is your 3.6 model comes in two flavours: one with a single MPPT for use with two pairs of panel strings and the other with two MPPT for two pairs of strings. What the installer may not be aware of is something that happens with East/West installs when one string pair is used to link East/West. When panels have differing light levels or insolation the ones with the weaker light act as a resistance preventing the other higher level light ones from generating properly. Similarly, one MPPT served by two strings may create the problem you are experiencing. If you can need a pic looking up at the bottom of the inverter. You have options but more on this later.</p></blockquote><p></p>
[QUOTE="Joules, post: 537546, member: 35656"] Thank you and well done! Can you please provide us with a pic of the exact model of inverter, there is a label on the side. The reason why is your 3.6 model comes in two flavours: one with a single MPPT for use with two pairs of panel strings and the other with two MPPT for two pairs of strings. What the installer may not be aware of is something that happens with East/West installs when one string pair is used to link East/West. When panels have differing light levels or insolation the ones with the weaker light act as a resistance preventing the other higher level light ones from generating properly. Similarly, one MPPT served by two strings may create the problem you are experiencing. If you can need a pic looking up at the bottom of the inverter. You have options but more on this later. [/QUOTE]
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Relative Low Performance of Domestic PV System
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