Thanks David, very helpful.Mangrove, I have had three phase 32A just installed for about $6000 because I needed it under regulations for a NSW solar array more than 5kW, but if it were just the car alone, I would have saved my money and stuck with the single phase dip switched back to 32A. It's best to charge between 20% and 80% most of the time for battery lifetime, but in practice, for 15000 km annually you need on average just 41 km a day. If careful drivers are getting say 410km a full charge, you are talking roughly 10% of a full charge a day, maybe 8.5 kWh. That should take maybe 70 minutes at 32A (7.4 - 7.7 kW), more if you like to smoke (zap?) the ICEs every day. I imagine I will charge once every 3-4 days to minimise plugging in.
I have a 3kW solar that I was think of adding to in the next couple of years - I wasn't aware of the 3 phase requirement. In the short term though the 32A may be the easiest way to go. Thanks.