ACRS backs NuScale’s smaller, PRA-informed emergency planning zone

October 25, 2022, 12:53PMNuclear News
A rendering of the six-module Carbon Free Power Project planned for construction in Idaho. (Image: NuScale)

NuScale Power announced October 20 that the Nuclear Regulatory Commission’s Advisory Committee on Reactor Safeguards (ACRS) issued a letter the previous day agreeing with NRC staff’s approval of NuScale’s methodology for determining the plume exposure pathway emergency planning zone (EPZ). As approved, the methodology would permit a smaller EPZ—dependent on site-specific conditions, including seismic hazards—that provides the same level of protection to the public as the 10-mile radius EPZs used for existing U.S. nuclear power plants.