It is desirable to have an energy mix.The old ‘don’t put all your eggs in one basket’ philosophy. Coal plants, and especially nuclear plants traditionally produce a greater amount of watts.
It is not so much the number of plants but the percentage of the nation’s power each source provides.
Building new plants from planning to going ‘on line’ take a considerable length of time.
Better not to be caught short in the event electric is needed.
Really good points: thank you.