Somebody put a Lithium Iron battery out as a power supply type. No carbon at all and weight isn't a factor when it stays in your garage. It's made for solar and also automatic backups.
It's being marketed in SoCal as an alternative to a generator to deal with power blackouts. I'm guessing it'll sell rather well...
There's some good stuff coming up and when it's affordable many will benefit. I have a solar array on my roof, but no storage, it feeds to the grid if I don't use the power and I get a rebate...Going well, but some storage would be good. Blackout insurance. I like the sound of that. It'll happen.