How about a couple of tanks and somebody parachuting in!? ;-)
I like the furrows but I’m not convinced by the electricity wires as a subject. Try getting down even lower, shoot with a smaller aperture (these seem to be taken at f4.0?) and maybe go back there at sunrise or sunset to get a bit of colour in the sky.
Dunno, we have one of those near us too and i’ve been driving past it in the mornings wondering whether i should go there with the camera. But i’m afraid i’m in the same boat as you, not really sure how to make it more effective? Maybe go lower and wider and have the lines leading to someone? Slip the farmer a tenner to walk across the horizon with a bright red jacket on or something :P