Posiva, headquartered in Finland, leads the world in nuclear waste management through its development of a deep geological repository for spent nuclear fuel. Located in Olkiluoto, the facility is one of the first of its kind to become operational, serving as a global model for long-term radioactive waste storage.
The project involves placing fuel assemblies into copper canisters, encased in bentonite clay, and storing them deep within stable bedrock to ensure isolation for hundreds of thousands of years. Posiva combines geological research, engineering innovation, and environmental safety standards to ensure that this waste poses no threat to humans or ecosystems. Their work directly addresses one of nuclear energy’s biggest challenges: safe and permanent disposal.
As countries seek low-carbon energy sources, Posiva offers a proven, responsible solution to the backend of the nuclear lifecycle, helping balance clean energy with environmental stewardship.
