690.43 Equipment Grounding. Exposed non?currentcarrying
metal parts of module frames, equipment, and conductor
enclosures shall be grounded in accordance with
250.134 or 250.136(A) regardless of voltage........
IMPO the pole is not included in that list, but I also think an AHJ could decide the pole is 'equipment' but I think that is streaching that section.
I also wonder what would be 'likely to energize it?
The grounded metal frames of the modules? Seems unlikely and if we bond the poles to the frames to the pole if the frames do become energized the pole will be as well.
I really don't know the answer, if the AHJ asked me to install a few bonding jumpers I would just do it, OTH what if it was hundreds of poles in a large array? The outdoor rated lugs are like $4 or $5 each and you would need two at each pole along with labor and wire. It could get costly to do if not really required.