There have been previous articles claiming that the expected cycle in most communities is that users will install panels + batteries first, for savings (of cash

There have been previous articles claiming that the expected cycle in most communities is that users will install panels + batteries first, for savings (of cash or of the environment ;). At some point, as enough leave the grid, the utility company will install massive environmentally friendly power sources (panels/wind/etc). At that point, it is not only cheaper to get green electric from the utility, it is more green (due to scale). Battery packs like these have interest for a house, but they are also interesting for a city - like the Tesla packs in Australia et al. If on the large scale they make sense, they should eventually leapfrog home usage, at which point there will be much less need for home packs and lithium.