Hey great!!! For only a forty thousand dollar investment, you’ll be able to warm up a cup of tea—sometimes even twice a day!!!! PT Barnum and WC Fields had a name for people like this.
Uh first off, I’m not stupid, secondly it never hurts to look into how things work and get info. And I wouldn’t be paying someone to build them, I’d do it myself. I’m looking at all my options for being as independent as possible. Someone who is stupid wouldn’t do that. They’d just sit on their butts and criticizes those that do.
“Hey great!!! For only a forty thousand dollar investment, you’ll be able to warm up a cup of tea—sometimes even twice a day!!!!”
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Understand your point, but actually one can accomplish what you described, for $100. Basically - a trickle charger, a battery and once a day, a couple minutes of heat from some sort of low-wattage small heating element.
Solar isn’t yet anywhere near economically competitive, but can in a pinch (teotwawki or oil crunch etc) provide a VERY basic limited backup capability. Just marginally more convenient than camping.
If there’s literally no power, for $100 ... that’s somewhat better than nothing. Sort of. :)
Unless one has an unlimited budget (your $40,000 reference) — in which case it’s actually possible to build a system capable of supporting nearly a “normal” house power load.
Mostly a hobby until the technology improves.