In the tunnel system in Forsmark, operational waste from Swedish nuclear power plants such as end-of-life parts and purification filters is currently stored. SFR, which the final repository is called was built 30 years ago. Now Swedish Nuclear Fuel Management, SKB, will expand the repository to be able to receive three times as much waste.

- First out are Barsebäck and Ringhals 1 and 2, says Klas Källström, project manager for the extension at SKB.

The waste to be stored here is contaminated with short-lived radioactivity. Most radiation has gone off within 1000 years. It should not be confused with nuclear fuel, where the radiation fades for a period of 100,000 years.

SKB's illustration - the blue highlighted part shows what the extension will look like. Photo: SKB

The extension has been approved by the Land and Environmental Court and the Radiation Safety Authority. Now Östhammar Municipality will say its own and then the government will make its decision.

The building hopes to be completed by 2030.

Join us on a tour 50 meters below the sea in the cliff.