mattie_p writes that this was originally submitted by cmn32480 via the forums.
"According to Fox News, environmentalists are concerned about the impact of the world's largest solar plant, which is located in the Mojave Desert, on the local bird population. The Ivanpah Solar Electric Generating System (a solar thermal plant) covers nearly five square miles, has approximately 350,000 garage door sized computer controlled mirrors, and has temperatures near the boilers reaching 1000 degrees Fahrenheit. Plant owners NRG Energy Inc., Google Inc., and BrightSource Energy say they have found dozens of dead birds in the complex in the last several months, some with burned or scorched feathers. The plant cost $2.2 Billion to construct, and had been held up in regulatory and wildlife relocation fighting for several years. It has officially been open since Thursday, February 13, 2014."
"...Why would anyone use this lame unit is beyond me. It is obvious the context calls for *-roof based surface unit."
I believe the editors were trying to avoid that ever-present confusion between the Standard measure(Roofs), and the Imperial measure (Rooves).