Does every Publix store have a back-up generator?

Every store has a small generator to run some lights and the stores computer systems in the event of power failure. Stores in Florida and other coastal areas have the large generators that are capable of powering the entire store in the event of power failure. They also have mobile generators to move to areas as needed. For instance during the recent floods in Nashville generators were moved in to keep those stores operating in order to serve the public.