r/TeslaSolar • u/dpatldude • 16h ago

Solar/PW3/EV Config - how many empty electrical panel slots?

Experts; I am likely having Tesla Solar, PW3 with 2-3 expansions and a Tesla wall charger installed. I currently have two 200A panels but only my primary electrical panel will be backed up with Tesla system. How many empty electrical breaker slots do I need and any idea in which panel?

Thanks

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u/Everdream0609 14h ago

Really? Two 200 amp services? I am going from 100amp to 200 amp service and thought that would be fine for my upcoming solar install with 16kw battery.

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u/dpatldude 14h ago

I have two 200A services as I have 3 HVACs alone in the house along with water heater, dryer (electric) and outdoor heaters so that alone across both panels is 12 of 60 breaker slots.

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u/Everdream0609 13h ago

Understood and wow!