Nuclear reaction output can be modulated on the order of milliseconds, practically visible as the temperature of the core, which varies on seconds to minutes. T

Nuclear reaction output can be modulated on the order of milliseconds, practically visible as the temperature of the core, which varies on seconds to minutes. They can be used as peaker plants if so designed. In the US at least, the issue is that energy output must be telegraphed 4+ hours in advance. If I had to guess this is a constructed incentive to make nuclear less desirable than coal or gas under the guise of safety.