If you watch the panels, they rotate to catch the wind on the left and rotate to feather the wind on the right side. I think the "antennas" on top are to tell the panels when to turn and to monitor the turning. What they are doing with all that power is a mystery. The large water tanks on the tower might be a clue. Lots of wire control cables amid the structure. Looks like a mechanical nightmare. Almost looks like sprinkler heads on the arms.