Table 1: Comparison of selected AP1000 parameters
Parameter AP1000 AP600
Net electric output, MWe >1117 610
Reactor power, MWt 3400 1933
Number of fuel assemblies 157 145
Type of fuel assembly 17×17 17×17
Active fuel length, ft 14 12
Linear Heat Rating, kW/ft 5.71 4.10
R/V I.D., in 157 157
Vessel thermal design flow 299,880 194,200
Steam Generator Heat Transfer Area, ft2 125,000 75,000
Reactor coolant pump flow, gpm 78,750 51,000
Pressurizer volume, ft3 2100 1600