NAC's Modular, Advanced Generation, Nuclear All-purpose STORage (MAGNASTOR) System: New Generation Multipurpose Spent Fuel Storage For Global Application

Multipurpose canister systems (MCS) have been designed, licensed, fabricated, constructed, and loaded over the last decade within the U.S. These systems are characterized as concrete-based storage overpacks containing transportable canisters utilizing redundantly welded closures. Canisters are designed and intended to be transferred into transport packagings for shipment off-site, and canister designs do not preclude their use in waste disposal overpacks. Over the last decade, more than 325 MCS systems have been procured by U.S. utilities and more than 225 have been loaded with spent fuel and placed into Independent Spent Fuel Storage Installations (ISFSI) at reactor sites. To date, NAC multipurpose systems constitute some 40% of all loaded concrete MCS in the U.S. The initial phase of MCS deployment in the U.S. is coming to a close, a phase characterized by procurements of first generation MCS for older plants with physical limitations, and for plants with near-term storage requirements and needing to preclude loss of full core reserve (FCR). The next phase of MCS procurements will be characterized by procurements for newer generation plants and for first-phase plants re-entering the market to improve their storage program.