Best I can see we have 66 operating muclear power plants in the USA. They make 20% of our power. Coal makes 50%. So, we'd need 165 NEW nuclear power plants to replace coal. Ya, right, like that's going to happen. I'll venture a guess if they built enough natural gas places to do the job we wouldn't have enough gas left to boil a cup of instant soup.
Don't forget that you cannot store AC electricity, not for one second. Every wind & solar electric NEEDS a back up of some kind to get it through when it's not producing. Wind and hydro dams work well. Wind comes up, let the dam fill with water, wind dies down, use the water from the dam, BUT, oh, gee golly, we've just removed most all the dams from Maine...poor lil' fishies needed to swim.