Question

To ask the Secretary of State for Energy and Climate Change, what proportion of nuclear material currently stored at Sellafield came from installations in Scotland.

Magnox fuel (including material from the Dounreay Fast Breeder Reactor) and Advanced Gas Reactor fuel comes to Sellafield from Scotland for interim storage and, where appropriate, reprocessing. By mass, the current proportion of spent fuel stored at Sellafield coming from installations in Scotland is about 3% for Magnox fuel and 30% for Oxide fuel. In addition, there are small quantities of material that have arisen from historic nuclear research activities undertaken between Dounreay and Sellafield.

Where fuels have been reprocessed, yielding radioactive bi-products and wastes, it is not practicable to attempt to quantify those materials originating from installations in Scotland as a proportion the total inventory of materials held at Sellafield.