What about the massive massive rebates that were available a few years back to drive uptake? Not direct govt investment, but with a similar effect - people got some money back from the govt when they installed solar, then the govt mandated a high feed-in tariff for some years (has since dropped/been abolished)
That's still available for new installations, I believe. The feed-in tariffs have all but gone, but solar is still well worth getting purely for the reduction in power bills (especially if you can schedule the bulk of your energy usage to be during peak solar generating hours).
The flip side is that the power grid is now going into a death spiral where falling kWh sales are pushing up prices per kWh, making solar even more competitive, etc. etc. They're going to have to start charging a large flat rate for connection (which they can't do, politically) or the whole thing's going to fall in a heap within a decade.
The electricity grid needs to transition into an energy market kind of deal where their role is to balance supply and demand across the entire grid rather than a net flow in any direction.
Of course it'll never happen, the privatised incumbants will fight innovation tooth and nail to the grave like you say
I suspect that's actually part of the problem: a massive buildout of renewables without full accounting or planning for the complications to the grid, i.e. all the shock loads and lack of storage. Then the consumer is left footing the bill.
At the same time, we have signed long-term LNG contracts while simultaneously large gas projects are delayed by various red tape and doesn't look like it'll clear up any time soon. I read at some point Australia is importing LNG just to reexport it to meet contract requirements.
Powerwall would certainly help with storage, wouldn't it? And consumers have an incentive to buy Powerwall to decrease the amount of power they need to buy from the grid.
Numbers don't make sense yet. Plus it takes up space, is a fire hazard, and I am doubtful the 10-yr+ warranties will actually hold up past year 5, especially for third parties.
Right now it's mostly for conspicuous consumption and virtue signalling. Those of us number nerds are waiting for the tech to improve and the price to drop more. A move off toxic/flammable lithium tech would be good too.
Unlike that debacle, this might even make economic sense once you factor in the government rebates/sweetheart deals and the PR bonus. Alas, nobody gives me anything on the side for buying a powerwall.
