Apparently this is all the rage in Germany (and China) where you can buy a kit at the supermarket for 500-600EUR and then you simply hang the solar panels over your balcony and plug them in to a wall outlet to reduce your net usage.
I was trying to do research on why we don't have this in the US and it doesn't seem like there are any particularly good reasons for it other than sclerotic response to "new" technology.
Seems like an incredibly cool idea to make apartment dwelling even more sustainable.
non-archive link: https://www.dw.com/en/mini-plug-in-solar-panels-are-they-worth-it/a-66240262
They're illegal because terrorists use these to make children get autism
Patriots burn natural gas.