I think it's a conjob personally but as my state has the highest cost of power in Australia and one of the highest in the world, when I was asked to participate in a power program and I get a Powerwall for only $3000 instead of near $20K I jumped at it. But I'd never pay retail for a battery to "save" on my power bill. $20K is a lot of years of power bills up front. Was it Sydney that was told to save power recently?
Care to share your cost per kWh? Very curious what is the highest in the world.