David Roberts:

As I wrote in my previous post, power utilities are pushing back against rooftop solar, but by doing so they are only accelerating the development of solar+storage, which may prove to be an even bigger threat.

Residential solar+storage (my main focus in this post, rather than commercial or utility-scale versions) refers to a) an array of rooftop solar panels connected to b) some means of energy storage, usually a battery or batteries, controlled by c) smart software that enables the system to communicate with the grid.