I don't know. Either I'm missing something, or the situation has changed since You moved.

http://www.ouc.com/residential/service-rates-and-costs/electric-rates - Base Charge + Fuel Charge is below 13c per kWh and that seems in line with prices of energy in Frorida compared with other states, although I gotta say the note on that UOC's webpage about possible discrepancy between the rates published here and OUC's Tariff may explain Your experience.

Wonder if it has anything to do with OUC being a private, for profit, corporation

I gotta say, local monopolies aren't the best environment for private companies. I don't know the details on how US railways are operating, but the model chosen in Britain doesn't seem to work well.