Source here with detailed information for each state in case you are interested in getting a balcony or window mounted solar system
Plug-in solar lets anyone generate free electricity — no roof, no permit, no contractor. A single panel on your balcony can meaningfully cut your bill, especially as rates keep rising.
Found it in this discussion: !https://slrpnk.net/post/39512229/22991609
Is it already legal in your country/state?
I would actually worry more about a typical generator or power bank because they're going to deliver actual power. What is one of these balcony solar jobs going to put out? 200 watts or so?
I agree with that, especially these new battery banks. At least there is a possibility you can hear the genset. Where these new battery banks are getting spicy with how much energy they can store in such a small footprint. And can be ganged together, I've seen videos of them running welder off them. Thats insane!