What's the point of metering equipment with a constant and predictable consumption? The costs of the equipment, its maintenance, reading and billing must be significant. As far as I know, in UK street furniture is paid by local authorities just based on a register of installations, though some places monitor switching times of photo-cell controlled lamps.
Could be a local utility requirement that all services be metered. They may never be read but the spirit of the local requirements are met.
talking about constant and predictable usage I have noticed meters on the billboard signs in my city. I wonder if the local utility or the sign company ever takes a reading off it or do they just estimate/flat rate the sign account.
My guess is they are on an annual plan (AKA budget plan) and they just read the meter once a year to adjust the rate.
These are all on borrowed time tho. I am not sure FPL has any analog meters left around here. All I see is the smart meter that calls home constantly. I can get an amazing amount of information about my usage online.