I have Tigos installed on my array (actually the model with optimizer, rapid shutdown and monitoring as I have shade issues).
I have one small box at the array, one cable going down to the inverter room, and one box there for the web connection.
One benefit of having the rapid shutdown and monitoring unit only vs the microinverter, is that the electronics is way simpler so way less prone to failure, and any failure of these units would not affect the production...
So yes there is a small extra cost but you get code compliance and individual panel monitoring while staying closer to the KISS principle

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