South Australian here - In South Australia keep in mind commercial scale solar is also generating against residential rooftop solar which is sold back via a feed in tarrif to the generator at a contracted fixed rate. The generators have to pay for (and take) this power. In some cases 20 year contracts where signed some time ago with feed-in tariffs much higher than what they ever should have been. This has resulted in early adapters making thousands in cash every year from residential solar (and still doing so). Everyone else is paying for it of course. Feed-in tarrifs available for contracts signed today are much lower, but some of these contracts still have a few years to run. Without more storage solar will continue to reduce reliability and add costs.