[aoeusnth1]

That seems very odd to me. Maybe Australian regulations or trade situation is different and makes the math different, but in my area (SoCal), TCO for my rooftop solar installation was $0.08/KWh using a Net Present Value calculation, and utility solar is more than 2x cheaper than that. It’s very odd to hear wholesale prices above 10c when rooftop is so cheap.

[jddj]

Not really addressing your point, but a sidenote on the topic of Australian regulations -- Due to some subsidies/incentive schemes which came through in some states about 10 years ago, some residential Australian rooftop solar installations are selling any excess into the grid at a rate of 0.44/KWh and will be until (from memory) 2024.