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’re just larping, friend.
Please elaborate. I have nothing against larping but that doesn't seem to carry utility beyond the enjoyment gained from the act itself. A small solar panel, however, seems useful for any scenario ranging from a few day power outage to full societal collapse and zombies. It's a genuine functional panel - not a prop.