Hi Jeff,
Thanks for the comment. I believe the idea about "off grid" being illegal in Florida may have originated from a couple sources...

1 - The lady who lived in town and was connected to power, city water, and city sewer. The city took her to court and eventually the ruling was that she was okay being off the power grid. I believe they "hung" her on a technicality about city water.

2 - It sounds like a paper called the New Times published an article that tried to equate anti-islanding requirements (which are required in any grid tie system everywhere in the USA) with off grid being illegal or some sort of thing like that. Here is an article from Snopes about it:
https://www.snopes.com/fact-check/is-it-illegal-florida-power-home-solar-storm/

I haven't taken the time to research the laws themselves, and I don't like replying on Snopes (which is definitely biased sometimes), but in this case, what they are saying makes sense based on what I know of requirements in other states.

So the bottom line is that I see no evidence so far to indicate that it's illegal to go off the power grid in Florida. Please let me know if you do find such evidence as I definitely want to know about it!

Thanks so much!