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Sweden’s 160,000-year underground bunker near Forsmark will bury 12,000 tonnes of spent nuclear fuel in copper capsules

More M. by More M.
January 25, 2025 at 1:50 PM
in Energy
Sweden

Credits: The Sterling Hill Mining Museum

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Sweden has made a bold and historic move. It plans on opening a 160,000-year bunker to store spent nuclear fuel. This cutting-edge facility, which is close to Forsmark, is built to safely retain radioactive waste for up to 100,000 years, guaranteeing the safety of future generations. There has never been a greater pressing need for efficient waste management as nuclear energy continues to drive contemporary society.

Since commercial reactors started operating in the 1950s, the nuclear industry has struggled with the issue of how to keep lethal radioactive waste until it is safe to handle. The only nation nearing completion of a permanent storage facility is Finland. The importance of the ultimate repository’s construction for Sweden and the climate transition cannot be overstated, according to Environment Minister Romina Pourmokhtari. Despite their claims that it wouldn’t work, it does.

The first long-term nuclear waste solution in the world

The Forsmark bunker project represents an “out of this world” initiative that is driven by passion in the nuclear energy sector. The plant uses bentonite clay and sophisticated copper canisters to safely hold spent nuclear material underground, safeguarding both humans and the environment. Different from the common temporary energy solutions, this one offers something more permanent and lasting.

According to the World Nuclear Association, there are around 300,000 tonnes of spent nuclear fuel that need to be disposed of worldwide. The majority is kept in cooling ponds close to the reactors that generated it. Many nations in Europe and other parts of the world are proposing to construct new reactors to generate electricity to power the shift away from fossil fuels, in addition to the spent fuel that is already produced.

The importance of storing nuclear waste: Why it matters

Beyond radiation exposure, nuclear waste poses other dangers. Spent fuel poses long-term health and environmental risks since it can contaminate soil, groundwater, and ecosystems if it is not properly contained. One crucial step in reducing these risks is the Forsmark site. Sweden exemplifies how nations can strike a balance between energy demands and environmental responsibilities with its careful design and long-term timetable.

This strategy might encourage other countries to take comparable actions for their nuclear programs. They can also spread their nets and look into something more permanent rather than temporary. In a world that wants to contribute to the health of the environment, when there is a permanent solution, it is better because industries and countries have a sense of sustainability security.

A breakdown of the Forsmark final repository: The whole vision

About 150 kilometres north of Stockholm on Sweden’s east coast, the Forsmark final repository will be made up of 60 kilometres of tunnels that are 500 meters deep on bedrock that is 1.9 billion years old. Encased in five-meter-long, corrosion-resistant copper capsules that will be packed in clay and buried, it will serve as the last resting place for 12,000 tonnes of spent nuclear fuel.

The facility will begin accepting waste in the late 2030s, but it won’t be finished until the tunnels are backfilled in the 2080s. But there’s still a chance that the procedure will be postponed. A Swedish court has received an appeal from MKG, a non-governmental group that deals with nuclear waste, requesting more safety inspections.

According to SKB, the nuclear industry will cover the approximately 12 billion Swedish kronor ($1.08 billion) cost of the Forsmark repository. All of the waste generated by Sweden’s nuclear power reactors will be able to be stored there. It won’t, however, contain fuel from upcoming reactors. By 2045, Sweden intends to construct ten additional reactors.

Could nuclear dependency be reduced by geothermal energy?

This is something we could consider. Perhaps it is a good idea to have energy options that are considered safer and close to permanency as well. Geothermal energy from the core of the earth from natural elements such as volcanoes can play a vital role in the energy sector and reduce or replace nuclear because nuclear could work, but it has a lot of safety insecurities.

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