February 14, 2023 | By Doug Jacobs

Representatives of Doosan Enerbility visited NAC International’s office in Peachtree Corners, GA January 17-18, 2023, to celebrate the effective date of Amendment 10 to the U.S. Nuclear Regulatory Commission (NRC) Certificate of Compliance (CoC) 72-1031 for NAC’s MAGNASTOR® ultra-high capacity storage system for spent nuclear fuel. 

This new license amendment includes the option for a Metal Storage Overpack (MSO) design that enables sites to store spent fuel in a more compact footprint as compared to that of the Vertical Concrete Cask used for previously loaded MAGNASTOR systems. This allows sites with limited space to implement more efficient storage for dry spent fuel canisters with excellent shielding, structural protection features, and flexibility to accommodate new canister designs and high-level waste contents. The MSO can be used for transportable canisters for both PWR and BWR spent fuel assemblies.

Doosan Enerbility and NAC collaborated on the MSO design concept as an alternative to concrete storage systems to support the Korea dry cask storage market and other international applications.

George Carver, NAC Vice President of Engineering & Support Services, noted: “The collaboration with Doosan resulted in an excellent dry cask storage solution that provides an alternative to concrete and reduces the storage facility footprint.”