Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what his most recent estimate is of the cost of decommissioning the existing nuclear sites within the remit of the Nuclear Decommissioning Authority; when that estimate was made; and when he next plans to review that estimate.

The Nuclear Provision is updated by the Nuclear Decommissioning Authority (NDA) as part of its Annual Report. The Nuclear Provision represents the best estimate of the NDA’s long-term mission to decommission its nuclear sites. The latest estimate is £149bn undiscounted (£237bn in present value terms).