From what I know there are many many many such projects in the permit phase in Germany, all of them run on capitalist interest without state funding. The only thing between now and them getting build is our government which seems to prefer a 180° turn into the fossil age.

That's outdated information, solar + batteries already reached parity in cost with nuclear and continue to get cheaper

Not enough to reduce the benefits to zero and that's all we need. As improvements come in you can upgrade the batteries over time and get better and better margins. But the system is already good enough for deployment.

Right, because hydrogen is not working. It's expensive to produce but most importantly incredibly hard to store and very dangerous if it catches fire.

Because hydrogen-ready power plants are not the same as natural gas power plants, as hydrogen gas is not a drop-in replacement for natural gas. And right now, when natural gas is still relatively cheap and renewable energy is not yet absolutely dominating the energy mix, politicians are fearing the cost of building the infrastructure for generating, transporting, storing and burning hydrogen gas.

In the future, hydrogen gas plants promise to be the best fit to pair renewable energy with, but right now the cost of it and the availability of fossil fuels do not force the hand of the people responsible for planning the future of the energy grid.

It is commercially viable

Who says I was making a global statement? I was talking about Australia as a specific example. Let's not be reading things that aren't there now.

However, countries that have access to vast areas of sunlight, like those in naturally desert or savannah biomes could and should use solar as an option - and even those that don't, should supplement their power production with it too. If every roof had solar worldwide, be that home or warehouse/factory, it'd be a huge reduction in the amount of electricity that needed to be provided by a centralised electricity provider.