Decommissioned Nuclear-Powered Submarines

Baroness Bryan of Partick Excerpts

Wednesday 23rd October 2024 Lords Chamber

Asked by

[Baroness Bryan of Partick]

To ask His Majesty’s Government how many decommissioned nuclear-powered submarines there are in Scotland; and how many years it will take to safely dismantle them.

[The Minister of State, Ministry of Defence (Lord Coaker) (Lab)]

My Lords, there are seven decommissioned and defueled nuclear power submarines in Rosyth Royal Dockyard, Scotland. “Swiftsure”, the first vessel being disposed of, is being used as a demonstrator to refine the dismantling process under the Ministry of Defence’s submarine dismantling project. Learning from “Swiftsure” will provide more certainty about the schedule for dismantling the remaining decommissioned Royal Navy submarines. The full dismantling of “Swiftsure” is due to be complete in 2026, achieving the commitment given to the Public Accounts Committee in 2019.

[Baroness Bryan of Partick (Lab)]

I thank the Minister for his Answer. My Question happily coincided with information that was released last week, but there remains real concern that not one of these submarines has yet been dismantled. Bearing in mind that one Dreadnought submarine in Rosyth has been out of service since 1980, it will take decades to dismantle the boats remaining in both Scotland and Devonport. Can the Minister say whether there has been any progress in finding a site for the radioactive waste disposal facility which will be essential to progressing this work?

[Lord Coaker (Lab)]

On all the things that my noble friend mentions there is progress and ongoing discussions, including the waste disposal site, but we are trying to speed up the submarine dismantling programme. Seven submarines at Rosyth are decommissioned. All have been defueled. “Swiftsure” is now in dry dock. That will be fully dismantled by the end of 2026. There are 15 such submarines at Devonport. Four of those have been defueled. However, my noble friend is quite right; we need to speed up the process and we are certainly looking at every way in which we can do that.