Las Vegas Sun

August 19, 2014

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Traffic on Interstate 15 passes behind heliostats (mirrors that track the sun and reflect the sunlight onto a central receiving point) during the grand opening of the Ivanpah Solar Electric Generating System in the Mojave Desert in California near Primm, Nev. Feb. 13, 2014. The project, a partnership of NRG, BrightSource, Google and Bechtel, is the world's largest solar thermal facility and uses 347,000 sun-facing mirrors to produce 392 megawatts of electricity, enough energy to power more than 140,000 homes.

Steve Marcus

Traffic on Interstate 15 passes behind heliostats (mirrors that track the sun and reflect the sunlight onto a central receiving point) during the grand opening of the Ivanpah Solar Electric Generating System in the Mojave Desert in California near Primm, Nev. Feb. 13, 2014. The project, a partnership of NRG, BrightSource, Google and Bechtel, is the world's largest solar thermal facility and uses 347,000 sun-facing mirrors to produce 392 megawatts of electricity, enough energy to power more than 140,000 homes.