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?
Removal of the regulated steps to keep the grid safe for linemen when the power is out.
Currently solar connections need to be installed by licensed electricians so that in the event of a power outage the solar doesn’t feed in to the grid causing linemen to get hurt/die
Plug in wouldn’t have that formal level of safety verification
Obviously the thought is the plug in panels would have safety features built in, but there’s added risk to the grid as a whole and the men/women who service them.
Hopefully plug in solar gets allowed everywhere quickly. Harvest that sun
Plugin has that safety to not put power on the wire if mains is disconnected…
At least, if you dont use cheap unregulated stuff that is.
Edit: hell, it needs main to know the frequency and timings of the ac so it can be in sync