Life off the grid not fully charged yet - home battery system

Living off the grid-
This hasn't become a reality yet for Australia: If you dream of buying a new Tesla home battery and "off-grid" and electricity bills --
You're really dreaming, according to experts.
Tesla Electric's charismatic founder Elon Musk has won global attention with its $4445 Powerwall home battery pack.
In 2016, in the Australian market, this means that electricity generated by day roof solar equipment can be used at night.
Professor Anthony vasello, president of Delta Power for sustainable energy development at the University of Sydney, said whether this would allow people to cut off their power supply and live "far from the grid.
"The size of this unit is so large that in Australia it is not enough to ride a bad weather for just one day or a few days.
Professor Vassallo said Powerwall is technically similar to other batteries on the market.
Is this the beginning of the "death spiral" of a large power network? Costs and challenges related to closing
Associate Professor Ian McGill, director of the UNSW Energy and Environmental Markets Center, said.
"What matters is not the average sun and the average family burden --
It was the winter week, and the sun was not bright at all. you ran a lot of heating.
"If the big energy companies were concerned about the power companies some time ago, the power companies thought the roof solar would have little impact," said Assoc Professor MacGill . ".
Power companies are now facing a decline in demand, partly due to the absorption of solar energy.
MacGill, a professor at Assoc, said whether POWERWALL will make different batteries can improve the reliability of the power supply, thus reducing the amount of money needed for network maintenance.
Companies like AGL have launched their own home batteries and need to compete with Tesla in price.
What are the advantages of staying ahead-
Grid and 1 with a BATTERYAustralia.
4 million households with residential photovoltaic (photovoltaic)
MacGill, a professor at Assoc, said the system might find it useful.
"Energy storage can save you PV and then yourself
"Spending it later in the evening, rather than exporting it to the grid and your retailer, can be valuable," he said . ".
Gemma Green, researcher at the Institute of Sustainable Development Policy at Curtin University, said whether the battery is suitable for the owner of the investor class building of apartment buildings may be very interested in creating a "micro-grid" with batteries in the building ".
"So far, this part of the market has not had much power to put solar panels on the roof because tenants benefit from it," she said . ".
"This system allows tenants to pay the cost of electricity to strata, which will offset the cost of strata by the owner.
Professor vasello said: "Is this the end of the fossil fuel industry? No, but it does open the door to more renewable energy in the power network.
"The more energy storage you can get into the network, the easier it will be to continue to introduce more renewable energy," he said . ".
Professor vasello said, can I charge my electric car and manage my house with solar panels and power walls?
"This is a very high request.
At present, it is very challenging to meet your domestic requirements without electric vehicles. "