Mine would be close to the minimum you could run - I do run a 3.5kw inverter split system air conditioner as well though.

Tariff 11 (Domestic 24 hours) 5.02kWh a day
Tariff 33 (Controlled Supply hot water) 2.78kWh a day

This is just for myself, my computer is about 10 years old but I have an LCD monitor; my fridge is new 315L, I only wash clothes about 3 times a week, I run a fish tank but don't need the heater on in Qld at this time of year, and my TV is an old CRT one, and just a set top box.