"Energy Field" by Damien McMahon is licensed under CC BY 2.0 / Cropped from original.

"Harnessing Nature" by Tommy Clark is licensed under CC BY 2.0 / Cropped from original.

"IMG_6087a" by Sam Churchill is licensed under CC BY 2.0 / Cropped from original.

"Michigan's Thumb powerscape" by George Thomas is licensed under CC BY 2.0 / Cropped from original.

"Wind Turbines near Ludington, Michigan" by drewbuikema is licensed under CC BY 2.0 / Cropped from original.

"Wind Farm" by churl is licensed under CC BY 2.0 / Cropped from original.

"Wind turbines overlook farm country in western Pennsylvania" by epa.gov is not subject to copyright in the United States.