Value Collector
Have courage, and be kind.
- Joined
- 13 January 2014
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They have natural gas heating, and probably hot water too, however you can see their solar panels were idling back each day once their batteries were full, so there is plenty of capacity to heat their hot water too if they did go electric hot water.I don't doubt they did what they claim but:
They have 4 Tesla Powerwalls and a solar system that's substantially larger than would sensibly fit on the roof of many homes. All up, it's circa $60k AUD worth of equipment.
It was extremely cold outside and yet the electrical load remained low to the point that even a microwave oven being used lead to a visible jump in consumption. Where's the heating and where's the hot water load?
I'm not suggesting they cheated in what they did but there seems to be a bit of trickery involved here. Great big battery and solar system and seemingly no or very little heating or hot water isn't a realistic scenario for the average household.
My guess is they're burning something to keep warm and heat water.
My house is fully electric, and I reckon in emergencies I could go off grid with just one power wall, all I would have to do is just be careful with how much hot water I used and when I charged the car if it was cloudy.
But I have a 8.2 KWH solar system, so on a sunny day it would have no problem heating the water from dead cold, topping up the car with 30% charge and having a power wall full by the time the sun goes down, and the power wall would easily cover an average night to the sun came up again