this post was submitted on 24 Aug 2025
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Operated from 1972 to 1996 and produced 119 billion kilowatt hours of energy

Dry cask storage is a method for safely storing spent nuclear fuel after it has cooled for several years in water pools. Once the fuel rods are no longer producing extreme heat, they are sealed inside massive steel and concrete casks that provide both radiation shielding and passive cooling through natural air circulation—no water is needed. Each cask can weigh over 100 tons and is engineered to resist earthquakes, floods, fire, and even missile strikes. This makes it a robust interim solution until permanent deep geological repositories are available. The casks are expected to last 50–100 years, though the fuel inside remains radioactive for thousands. Dry cask storage reduces reliance on crowded spent fuel pools, provides a secure above-ground option, and buys time for nations to develop long-term disposal strategies. In essence, it’s a durable, self-contained “vault” for nuclear waste

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[–] mkhopper@lemmy.world 6 points 3 weeks ago (2 children)

The casks are expected to last 50–100 years, though the fuel inside remains radioactive for thousands.

In other words, kicking the can down the road. "I hope they find a solution, but I don't care. I'll be dead by then."

[–] Derpenheim@lemmy.zip 12 points 3 weeks ago (1 children)

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The casks are continuously recertified for as long as the material needs to be held. Radioactive material decays into non radioactive elements over the course of its half life. This is not kicking the can down the road.

The nuclear energy industry is the safest industry anyone has ever worked in, and it is intentionally so. Please go watch any number of resources on this fact.

[–] Track_Shovel@slrpnk.net 8 points 3 weeks ago

Welcome to the world of mining. Metal leaching/acid rock drainage (ML/ARD) is a big issue associated with waste rock, and the solution is often an engineered cover that limits oxygen and water ingress (as these react with sulphur, lowering pH and releasing bound metals in the form of leachate). These covers often use geomembranes that have lifespans of 25 years... Yet you have 300 million tons of ML/ARD waste rock entombed by them.

Look up the Giant Mine - that one will make your head spin.