Finland Prepares to Begin Permanent Burial of Spent Nuclear Fuel at Onkalo Repository
The Onkalo geological repository in Eurajoki, Finland, is nearly ready to begin permanent underground storage of radioactive spent nuclear fuel. The facility, blasted into 1.9 billion-year-old bedrock, is expected to be the world's first of its kind.
The Japan TimesAn elevator at the Onkalo nuclear repository in Eurajoki, southwestern Finland, displays the number 433 as it descends 433 meters below ground. The doors open onto tunnels that form what is expected to be the world's first permanent repository for radioactive spent nuclear fuel. 9 billion-year-old stable bedrock.
Onkalo means "cave" in Finnish. Philippe Bordarier, chief executive of nuclear operator Teollisuuden Voima Oyj (TVO), stood in one of the tunnels on May 18. The Japan Times reported that the facility is nearly ready to start operations.
Countries have been wrestling with what to do with dangerous nuclear by-products since the first plants were built in the 1950s. Currently, most spent nuclear fuel is in temporary storage. The article was published on June 1, 2026.
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