this post was submitted on 14 Jul 2024
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Yea bypass diodes help a little, (and they have existed for a very long time, nothing to do with “modern” panels), but any shade effectively shuts down the entire panel, and unless the charge controller is happy with much lower voltage, the whole series string will stop producing.
Panel Level Optimization
Prevents a shaded panel from affecting the entire string. Pretty standard on Australian residential setups these days.
That's my understanding too.