A giant solar farm able to power the entire United States sounds more than a little far-fetched, but Elon Musk could be onto something. He believes the plan is rather simple; use 10,000 square miles of desert for the farm. Some claim the idea is useless because the giant farm would only have one use, and a large enough storm or even just an overcast day in the area would knock out the power, meaning the entire country would experience a power loss. Bill Gates has called the idea “cute,” and that nuclear power is the way to go.
Source: https://www.popularmechanics.com