You neglect the multiplicity of storage alternatives, all of which work, at different price points. The most cost-effective will be the ones used. Idiotic ones

You neglect the multiplicity of storage alternatives, all of which work, at different price points. The most cost-effective will be the ones used. Idiotic ones (e.g. Energy Vault's) won't be. Of course very little storage is built yet, because it would be beyond stupid to build storage that there is not renewable capacity, yet, to charge up. Money is overwhelmingly better spent on generation capacity, first. Storage cost is falling faster than solar. When we build it, it will be very cheap.