By Daniel Hernandez | March 7, 2016
The glittering Las Vegas strip is not an obvious model for energy conservation.
Yet hidden above the glowing Eiffel Tower, neon resort awnings and a black pyramid that shines a beam of light into space, is one of the largest rooftop solar arrays in the country.
Twenty acres of sun-catching glass sit atop the Mandalay Bay convention center, and when new installations are complete, it will become the biggest rooftop solar array in the US.
