I am not even sure why people have this irrational fear of pulling an electrical permit in Florida. It virtually never affects your taxes. The property appraiser is a separate agency anyway and they have very good ways of figuring out what you are doing, permit or not (aerial photos, and a biannual on site inspection among other things. A homeowner can even do the work themselves.
When I did my service upgrade, it was very easy and FPL was very cooperative. They arranged to come cut my drops right before lunch and by the time they got back from, I was ready to hook up again. Sweet and free. They even gave me the meter base and enclosure ahead of time so I could build the new service at my leisure before I called for the cut over.