Apparently this is something you need if you’re going to compare power supplies (solar panels + MPPC) in parallel even if they’re at the “same” voltage.
This is the goal:
[https://www.digikey.ca/en/articles/properly-configure-parallel-power-supplies](https://prod-files-secure.s3.us-west-2.amazonaws.com/a41d1a07-9697-4600-96cb-dd305d697b00/d1b26ae2-7559-4330-9ca8-b9ec14524f7d/article-2016september-properly-configure-parallel-power-supplies-fig1.avif)
https://www.digikey.ca/en/articles/properly-configure-parallel-power-supplies
where each Power Supply is a solar panel
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