Tempe, Arizona-based renewable energy company First Solar has clinched a deal to build the worldÔÇÖs largest solar power plant in the Chinese desert. The two-gigawatt plant will be located in Inner MongoliaÔÇÖs Ordos City province and is to be built in four phases over a decade on a 65 square kilometer plot of land. It is hoped that on completion the plant will supply power to three million Chinese homes.