>>508758571I'm not knocking nuclear. It's a great long term investment. However, it excels at consistent generation. They are throttle-able to a degree, but primarily in large, discrete, steps. You want them producing the minimum energy demand throughout the year.
Something like natural gas can respond to changes in demand near instantly, so you would use that to make up the difference.
Solar and wind, though very inconsistent, can be combined with pumped or battery storage to supplement the grid. It's just another source of energy. Why not use it?