In the News

Over the course of 52 weeks, ZionSolutions transferred 2,226 spent nuclear fuel assemblies from wet storage to 61 NAC International Magnastor dry cask storage containers. The casks were placed on the plant’s independent spent fuel storage installation (ISFSI).
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The Kewaunee contract is NAC's fifth MAGNASTOR System award worldwide and the third award in which a U.S. plant has transitioned from another technology to the MAGNASTOR System. The Kewaunee award brings the total MAGNASTOR commitments to 160 systems.
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NAC International Inc., a U.S. company specializing in nuclear packaging and transport, is seeking NRC and CNSC approvals to use its NAC-LWT cask system to haul the radioactive liquid from Canada, something that the CNSC and other experts say has never been done before.

To shield the radiation, the fuel will be sealed in five stainless steel canisters with half inch thick walls and a honeycomb rack with boral “poison mats” to catch stray neutrons. Each canister weighs about 10 tons and cost upwards of $500,000. Loaded, it will tip the scales at 55,000 pounds.
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NAC International has already won a $65 million contract to supply 64 Magnastor 37-element canisters, most of which are for spent fuel, but four will be used to store greater-than-class-C (GTCC) waste. In addition, some class B & C low-level waste will be packaged and stored separately.
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