Some people think that hydroelectric and solar power should be used to supply all of the electricity for the Unite States. Which of the following would be a flaw in this plan?

By estimate, the United States has a population of 330 million people. That's a lot of people to give supply to. Renewable energy, such as hydropower and solar energy, as of the moment, is not sustainable. This is because technologies are not yet able to harness that much power compared to coal power plants. The power would also be fluctuating because of weather conditions. Renewable energy could only be used as an alternative.