It doesn’t go out where I live, but you could instead get a diesel generator and not have to worry about utilities

You can actually get a tri-fuel generator that can run off gasoline, propane, or NG (with some minor fiddling required to convert between the three).

However, it's still a lot more hassle to set this up compared to a battery pack that "just works".

That's not what I meant. Eventually, it will go out for the entire planet. It is not an unlimited resource. Then what?

People in general is not aware there are physical limits with energy sources and materials. We won't grow forever, actually we'll probably shrink once we hit the limits.

It's going to be a shock for a lot of people, specially in techno-optimistic communities as HN.