Ok then. You have an 85KWh battery. You use 1Kw per 5 km's. An ordinary house power point can supply 10amps constant draw.. So, 2.4KW per hour or 12 - 14 km of range per hour. Bear in mind that there are always losses, and nothing is 100% efficient, so you probably end up with something like 2 Kw going to the battery. The formula is amps x volts = watts. So a 15 amp outlet will give 15 x 240 = 3600Watts or 3.6 Kw less losses. From this you can carry on with the math to work out your daily projected usage, your off peak hours and the time it will take to charge, including those times when your battery might be depleted and you need to "fill up" quickly. Most houses in Australia have an 80 amp supply from the pole. Need to be aware how much power your whole house is drawing at various times. (check your power bill). Some, like myself have 3 phase power, with a 200 amp supply. Means i can draw 32 amps x 3 at one time so a total 96 amps!!! with appropriate wall box (EVSE- electric vehicle supply equipment) 38.4Kw!!! Because the voltage is 400 with 3 phase. As i said, there are losses and 5 km per Kw is not dead accurate and depends on your driving style. Does that help?
If your demands for range are not that great, have your electrician install a 15amp power point, or even a 20, and that would probably do you. Otherwise you are going to have to go to the expense of bringing in a larger supply off the street. Bear in mind that a 20 amp power point is a heavy duty industrial type. You will see these at say a marina.
Also, have a look at the other thread here on mobile power for travellers. You will get further info from that.
