An important difference is that solar panels and battery cells can be replaced in far smaller units on a rolling basis if desired. E.g., "we'll replace another

An important difference is that solar panels and battery cells can be replaced in far smaller units on a rolling basis if desired. E.g., "we'll replace another row of roof shingles this month" vs. "reactor unit 2 will be down (not producing power, but still requiring active management) for two years for refueling".