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
