All of South Australia's power comes from solar panels (opens in new tab)

If 77% of power can come from rooftop solar when far less than 70% of people have rooftop solar, then you'd expect prices to rapidly decrease for consumers. Unfortunately retailers are now able to sell power that get access to almost for free (solar feed-in payments have been heavily decreased it looks like). This will only further incentivise people to get their own panels, increasing the grid instability. It is actually in the networks best interests to put downward pressure on prices in this case, otherwise they'll need to front the costs of managing an unstable grid.

Due to the low cost of solar panels, there is no reason why one cannot have an overcapacity of 2x-3x along with storage.

In that case we really need good applications to take advantage of surplus energy beyond energy storage.

The title is incorrect. It was only electrical power, not all power, and it was only for 1 hour on one day.

Still impressive though.

I wish we had data for how many square kilometre of land do all these solar farms take.