I’m only half kidding. I’m a bit of a prepper and I have lots of powerbanks and devices that charge from USB but besides idling my truck I really had no other way to charge any of them in case of a long-term power outage which seemed a bit of an oversight on my part.
Not like this solves the issue. 30 watts (under ideal conditions) isn’t much but it’s a start.
You underestimate the amount of digital hoarders out there.
Or maybe hoarders overestimate how much and how long they can rely on their digital stuff.
Once you let go of heating and cooling, larger temperature variations are going to do a number on you consumer grade electrical devices. Your solar panels are one heavy hails storm away from destruction, and if we assume climate change is the cause of the apocalypse, you can count on those.
The best way to survive an apocalypse is to rebuild communities with a wide set of skills, and still dramatically lower our quality-of-life AND HEALTH expectations.