This Aug. 13, 2014 photo shows a power tower at the Ivanpah Solar Electric Generating System near Primm, Nev. The site uses over 300,000 mirrors to focus sunlight on boilers' tubes atop 450 foot power towers heating water into steam which in turn drives turbines to create electricity. New estimates for the plant near the California-Nevada border say thousands of birds are dying yearly, roasted by the concentrated sun rays from the mirrors. (AP Photo/John Locher)

John Locher