Excavation of joint functional test final disposal tunnel started at Posiva’s ONKALO


If it were placed above ground, the 460-metre steel frame built for the personnel shaft would be the tallest human-made steel structure in the Nordic countries. The construction and installation work at ONKALO and the encapsulation plant are proceeding rapidly as part of the EKA project. Posiva will be the first company in the world to start the geological final disposal of spent nuclear fuel in the mid-2020s.