China`s MASSIVE Desert Project Is About To Change The World. This is the biggest solar power plant in the United States, located in Kern, California. The Solar Star Plant is over 8 square miles and has a generation capacity of 579 megawatts, powering around 255,000 homes. This is impressive, but about 6,500 miles away, in this remote desert, there`s a solar facility that could dwarf it … and just about every other solar power plant on earth. And it`s not alone.