Demand for Tesla's Powerwall home storage batteries has jumped more than 30 times at some large installers after power blackouts in two states.
Installers say "blackout proofing" has become a new buzzword among householders.
The surge in inquiries about home storage battery systems has been almost overwhelming as it adds a new level of demand from customers previously focused on environmental considerations and reducing power bills from weaning themselves off the traditional electricity grid.
Natural Solar managing director Chris Williams, who runs a national firm with its headquarters in Sydney, said the biggest jump had been in South Australia and Victoria, but demand had spiked across the country after the blackouts put the future of electricity grids and renewable energy sharply into the national spotlight.
"We have seen a massive pick-up in demand," Mr Williams said on Thursday. "It's been 30 times the normal levels".