the interactions between the grid and nuclear power plants will be discussed in greater detail in the following section because of their large turbo generators with substantial inertia nuclear power plants increase significantly the overall inertia of the electrical system thus providing some insurance against sudden disturbances an electrical system with higher inertia will experience a slower change in frequency for a given mismatch in the demand and supply of electricity with their high inertia large reactive power and dynamic stability nuclear power plants contribute significantly to grid stability for frequency voltage and angle