To ask the Secretary of State for Defence, what the annual cost is of maintaining decommissioned nuclear submarines at (a) Rosyth and (b) Devonport.
The annual cost for maintaining decommissioned submarines varies each year depending on the respective maintenance requirements. In financial year 2023-24, £1.711 million was spent at Rosyth and £7.056 million at Devonport.
Nuclear Submarines: Decommissioning