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FYI our ducted AC system is single phase, rated at about 15Kw. Flat out it burns about 4kw of electrical power, which will flatten the Tesla in a bit over three hours.
It does not need to be run overnight as the main bedroom has a split system
that only burns 600 watts or so, hence with the PV panels we can cook meals, have hot water and not swelter mid summer without an electricity bill...not so great with limited daylight hours in mid winter....I don't like sitting in the dark in the cold, so have to pay the Piper.
That said, we produce far more power than we consume....but energy providers pay peanuts for feed-in tariffs, and charge you, as I mentioned earlier, about $1.00 a day to say connected.
With smaller A/C systems, and no swimming pool, and gas for cooking, I have no doubt a 5Kw PV array and Tesla II would allow many to effectively go "off grid".....but I'd note our 310 litre off-peak hot water storage system burns 7Kw daily (but that's just 77 cents a day off peak rates)..and is not connected to the Tesla II (I think this is actually not permitted) ...hence you might want to look at solar hot water.
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