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Finland's Onkalo Spent Fuel Disposal Facility Starts Drilling of First Disposal Hole

On the afternoon of August 26, 2026, Finland's Onkalo spent fuel final disposal facility commenced drilling of its first disposal hole deep in the bedrock at Olkiluoto. Posiva stated that the drilling operation is being carried out at a depth of more than 400 meters underground, with the drill bit beginning to cut into the approximately 1.9-billion-year-old Olkiluoto bedrock. Kimmo Lehtola, Posiva's Operations Construction Manager, explained that a kick-off meeting had been held the day before the operation, focusing on reviewing safety matters, technical specifications, and the detailed drilling plan. On the morning and early afternoon of the drilling day, the team completed final adjustments to the equipment, after which the drilling rig began its work. He noted that the team had previously completed...

2026-08-28

Finland's Onkalo Repository to Be Commissioned, Experts Say 100,000-Year Safety Assessment Still Faces Uncertainties

Finland's Olkiluoto is about to commission the world's first permanent deep geological repository for spent nuclear fuel — Onkalo. The facility is designed for long-term underground containment of spent fuel, with a design safety period of up to 100,000 years. There remains debate within the nuclear industry over whether such facilities can remain safe over such an immense timescale. Dmitry Pripachkin, head of the Department of Radiation Physics and Nuclear Technology Safety at the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), stated that modern science does not yet possess tools capable of reliably predicting the state of such facilities after 100,000 years. Science can study the evolution of geological formations over long historical periods, but...

2026-08-09

Trump Administration Revives Spent Fuel Disposal Plan, Seeks State Cooperation

The Trump administration is reshaping spent fuel policy, attempting to restart a long-stalled permanent disposal program through a combination of administrative and legislative measures. This initiative aims to address the growing accumulation of spent fuel, a long-standing issue that has lacked an effective solution. To fund the Nuclear Waste Fund and restore the Department of Energy's access to its $50 billion in resources, the draft legislation proposes reinstating surcharges on nuclear power plants. The core of this policy shift lies in seeking state government participation and cooperation, hoping that states will proactively assume a leading role in spent fuel disposal. While at least two states have already expressed willingness to serve as potential candidate sites, long-time advocates and researchers monitoring the issue warn that significant political resistance and logistical challenges lie ahead.

2026-08-06