LAS VEGAS — High above the Las Vegas Strip, solar panels blanketed the roof of Mandalay Bay Convention Center — 26,000 of them, rippling across an area larger than 20 football fields.
From this vantage point, the sun-dappled Mandalay Bay and Delano hotels dominated the horizon, emerging like comically large golden scepters from the glittering black panels. Snow-tipped mountains rose to the west.
It was a cold winter morning in the Mojave Desert. But there was plenty of sunlight to supply the solar array.
