Solar isn't going to be that effective in my area as the stuff that causes power outages also block sunlight. People that need power and can't wait for the power company buy generators. It's been that way for a long time.
I meant in the case of disasters. An earthquake will break down the electrical grid, but solar arrays will keep humming along, and solar arrays that survive hurricanes will be able to provide power for weeks while the grid is broken down.
In the case of wildfires and PG&E, as long as the smoke doesn't obscure the panels, you're going to still produce energy.
And, of course, while certain areas won't have power because of winter storms, increasingly people are moving away from the midwest and east-coast to the sunbelt, which is rife for major solar investment.
Again, ice storms and PG&E's incompetence are edge cases—important to consider—but really not as important as what 90 percent of people will do 90 percent of the time.
If we were all preparing for disasters, we'd be buying diesel Dodge Rams with extra gas tanks. But, most of us are still buying Honda Accords and Ford Mustangs.