What size breaker feeding it? Weird, setup, what did they do in their before, I seen a building where they had a 200a 40 space panel with all 15 a mini's in it, so A LOT of breakers. Being fed by a 30a breaker with 10 ga wire. It was a "clean" power circuit that ran all the printer and computers at each station in the building. They didn't need a lot of power, just wanted each one on its own breaker so they could shut them down individually, there had to be 30K feet of 14/2 in that building...
Either way it looks like there is a nice big conduit running to it so you can run what ever you want to that panel, depending where it is coming from...