Only the lighting manufactures where there at bid opening, go figure!
Probably because they sought out a place to convince them they needed -
some of their product.... Then went through the rigmarole of finding someone to put it in for them.
Anyway there are probably a 100 ways to do it - but that depends on how you're getting the circuits there (trenching/over-head circuit length) - what other needs they might have, how they want to control it and from where, and how much control they want over it.
Since you're talking cheap... A disco with a lock on it for a feeder tapped at small panels at each is effective and covers the voltage drop you would have for long circuits better than a bunch of branch circuits from a single location. That is if they want them to come on all at once and have no other electrical needs out by the poles... And the switching inrush current of firing up whatever type of lighting they want, and how much of it there is... (Higher voltage = smaller wire size)
But a good place to start is finding out more about what they want or might want down the line, (like a score board - maint recepts, etc.) And what voltage and VA the lights are available in.
Anyway take a peek at
this - a sizable install but informative of what you could be up for...
You should also want to ask how and who is going to control them, a while back I installed one of
these at a soccer field - it was neat - you called on the phone to turn on the lights. (Well to the manager - who called and turned on the lights... Because the coaches had apparently made unauthorised keys to the electrical room...)
