Home battery

[better]

10. No argument there.

For simple backup during temporary outages, a natural gas generator is pretty much undoubtedly the more economical solution, for sure.

But for anyone who does want battery backup for functionality like load-shifting to off-peak rates or net metering, there are options with much lower startup cost than the system OP mentions, which is what prompted me to chime in.

And of course, they offer the potential of completely standalone operation, long-term, with no per-hour operating cost, when combined with wind or solar for battery charging. And once they reach a certain scale, they can eliminate the need to pay for electricity entirely. They do have their place, though they're of course not the right solution for everyone's needs.