Holtec’s Non-Fuel Waste Storage System


Holtec’s HI-SAFE storage system provides an extremely safe and cost effective solution for on-site storage of non-fuel waste generated from operation and decommissioning of commercial nuclear power plants. The HI-SAFE storage system is adaptable for storage of Class B, Class C, and Greater than Class C (GTCC) waste, including highly activated metal components from reactor operations and decommissioning. The Non-Fuel Waste Canister (NFWC) serves as the confinement enclosure for the Waste and the steel-concrete-steel HI-SAFE overpack provides biological shield and physical protection.

The HI-SAFE Storage System is a member of the HI-STORM family of storage overpacks, allowing its users to utilize the same ancillary equipment as those used to load Holtec’s HI-STORM used nuclear fuel dry storage system. Use of the site’s existing ancillary equipment for loading and on-site transfer operations enables the site to leverage in-house expertise and trained personnel in the performance of a successful HI-SAFE loading campaign.


TitleYearPatent No.Status
Cask Apparatus, System and Method for Transporting and/or Storing High Level Waste2017US 9,672,948 B2Granted