Considering the location, first thought is that it's powering an irrigation system. Those sails would provide a huge amount of torque for the gearing needed to run a large pump.
The hardware at the top of the tower is puzzling. It almost looks like a set of microwave antennas, but they are rotating. That doesn't seem to be ideal.
Way too complicated and not enough audible cussing for it to be a drilling rig. Maybe an art piece? Carousel ride for birds?