The biggest challenge was positioning the camera for the photo. The angle of the sun's movement required some judgment and as the sun set closer to the turbines, I had to run (yes, run!) about 50 meters south quickly, set up the camera and shoot rapidly or I knew I'd miss the shot. The composition was a gamble because the turbines were all rotating. I kept shooting and didn't know that I got the shot until I examined the results.
1/2500th sec, f /7.1, ISO 250