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The indoor panel is a new 200 amp.
I'm located in pasco county, Fl.
Your explanation and diagram is great but you raised another question.
You stated I need to run 3/0 cu from my outdoor disconnect (panel) to my indoor panel.
I had thought for residence I could step down to 2/0 cu.
If indeed I have to use 3/0 cu what size AL should be run from the weatherhead to the meter pan ?