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String sizing confusion
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<blockquote data-quote="binky" data-source="post: 524008" data-attributes="member: 490"><p>I wouldn't do that as 800V DC is likely to blow your inverter up. Do you actually need optimisers? To me, unless you really have shading issues, they are a waste of money and merely add failure points to the roof. Reading up on those Tigo units, they just bypass the panel anyway, whereas Solaredge system effectively moved the MPPT to the panel, so even a part shaded panel will still produce power. I'm also pretty sure that Solaredge would cope with 20 panels on a single string. 4mm cable will be fine unless cable run is very long.</p></blockquote><p></p>
[QUOTE="binky, post: 524008, member: 490"] I wouldn't do that as 800V DC is likely to blow your inverter up. Do you actually need optimisers? To me, unless you really have shading issues, they are a waste of money and merely add failure points to the roof. Reading up on those Tigo units, they just bypass the panel anyway, whereas Solaredge system effectively moved the MPPT to the panel, so even a part shaded panel will still produce power. I'm also pretty sure that Solaredge would cope with 20 panels on a single string. 4mm cable will be fine unless cable run is very long. [/QUOTE]
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String sizing confusion
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