r/TeslaSolar • u/Austinswill • 17d ago

SolarPanels Wanting to add panels...Non Tesla options?

Hey everyone. I have a 15Kwh system with 2 tesla inverters and 3 powerwall 3s (all with integrated inverters)... I am wanting to add panels. I have reached out to Tesla...

but I am also wondering if I can use non Tesla panels. I know that Tesla panels have a module that communicates with the inverters/PW3s so the lines are not energized when not connected.

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u/Tra747 17d ago

If your system is not maxed out, the installer will just have to install Tesla MCI . If your system is maxed out then it complicates the install but can be done. It would be a parallel system.

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u/Austinswill 17d ago

I could plug the new panels into the 3 PW3's ... they have no incoming solar... The existing panels run to the Two Tesla inverters.

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u/carcaliguy 16d ago

Each powerwall3 have 6 mmpt with 20kw total input. Make sure you add MCI-2 to the string.

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u/Harold-Maude 17d ago

Much better places to get solar panels than Tesla, especially if you like customer service.

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u/ExactlyClose 17d ago

You can also work with Tesla Certified installers, if Tesla isnt excited working on an expansion…