Editing Nuclear Decommissioning Authority (section)

==Costs==
{| class="wikitable" style="text-align:center; margin-left:10px" align="right" border="1"
|+ NDA increasing estimates of remaining cost of decommissioning and clean-up<ref name=nao-20150301>{{cite report |url=http://www.parliament.uk/documents/commons-committees/public-accounts/Progress-on-Sellafield-Site.pdf |title=Nuclear Decommissioning Authority - Progress on the Sellafield site: an update |publisher=National Audit Office |date=March 2015 |access-date=16 March 2015}}</ref><ref name=gov-20160901/>
|-
! rowspan="2" | Year of<br/>estimate !! Sellafield !! Other NDA sites !! Total
|-
! colspan="3" | (£ billions, discounted)
|-
|2009-10 || 25.2 || 19.9 || 45.1
|-
|2010-11 || 32.7 || 16.5 || 49.2
|-
|2011-12 || 37.2 || 15.6 || 52.9
|-
|2012-13 || 42.0 || 16.9 || 58.9
|-
|2013-14 || 47.9 || 17.0 || 64.9
|-
|2015-16 || 117.4 || 43.3 || 160.7
|-
|2017-18<ref name=nao-20180620>{{cite report |url=https://www.nao.org.uk/wp-content/uploads/2018/06/The-Nuclear-Decommissioning-Authority-progress-with-reducing-risk-at-Sellafield.pdf |title=The Nuclear Decommissioning Authority: progress with reducing risk at Sellafield |isbn=9781786042019 |publisher=National Audit Office |date=20 June 2018 |access-date=10 July 2018 |page=27 |quote=The discounted provision has more than tripled since 2015, increasing from £73 billion in 2015 to £234 billion, due to changes in HM Treasury’s discount rates.}}</ref> || n/a || n/a || 234.1
|-
|2018-19<ref name=nda-20190704/> || 94.0<br/>(undiscounted) || 30.3<br/>(undiscounted) || 130.7
|-
|2019-20<ref name=2020report/> || 96.5<br/>(undiscounted) || 35.1<br/>(undiscounted) || 134.9
|}

In 2005, the cost of decommissioning these sites was planned at £55.8{{nbsp}}billion, with Sellafield requiring £31.5{{nbsp}}billion.<ref name=nda-strategy-2005>{{cite report |url=http://www.nda.gov.uk/documents/upload/Draft_Strategy_for_Consultation_2005.pdf |title=NDA Strategy - draft for consultation |page=66 |publisher=Nuclear Decommissioning Authority |year=2005 |access-date=7 December 2013 |url-status=dead |archive-url=https://web.archive.org/web/20091122155158/http://www.nda.gov.uk/documents/upload/Draft_Strategy_for_Consultation_2005.pdf |archive-date=22 November 2009 }}</ref> However, in 2006, the NDA reported that the cost of cleaning up existing waste was higher than previously thought, and gave a new estimated decommissioning cost of about £72{{nbsp}}billion over a 100-year period.<ref name=bbc-20060330>{{cite news|url=http://news.bbc.co.uk/1/hi/business/4859980.stm |title=Nuclear clean-up 'to cost £70bn' |publisher=BBC News |date=30 March 2006 |access-date=2010-05-22}}</ref> In 2008, estimated decommissioning costs increased to £73.6{{nbsp}}billion, or after taking account of [[discount window|discount rates]], £44.1{{nbsp}}billion.<ref>{{cite web|url=http://www.nda.gov.uk/news/arac-0708.cfm |title=Annual Report & Accounts 2007/08 |publisher=Nuclear Decommissioning Authority |access-date=2010-05-22}}</ref> A 2006 estimate foresaw £14{{nbsp}}billion of offsetting income from reprocessing fuel at [[Sellafield]].<ref name=bbc-20060330 /> In 2009, the NDA sold land near three existing reactor sites for expected new nuclear power stations, for over £200{{nbsp}}million.<ref>{{cite news|url=http://www.timesonline.co.uk/tol/news/environment/article5992467.ece |title=Prices soar as bidders fight for nuclear sites |publisher=The Sunday Times |date=29 March 2009 |author=Danny Fortson and Dominic O’Connell |access-date=2010-05-22}}{{dead link|date=September 2024|bot=medic}}{{cbignore|bot=medic}}</ref>

In 2013, a critical [[Public Accounts Committee (United Kingdom)|Public Accounts Committee]] report stated that the private consortium managing Sellafield has failed to reduce costs and delays. Between 2005 and 2013, the annual costs of operating Sellafield increased from £900{{nbsp}}million to about £1.6{{nbsp}}billion. The estimated lifetime [[Annual effective discount rate|undiscounted]] cost of dealing with the Sellafield site increased to £67.5{{nbsp}}billion.<ref name=bbc-20130204>{{cite news |url=https://www.bbc.co.uk/news/uk-england-cumbria-21298117 |title=Sellafield clean-up cost reaches 67.5bn, says report |publisher=BBC |date=4 February 2013 |access-date=19 February 2013}}</ref><ref name=guardian-20130204>{{cite news |url=https://www.theguardian.com/business/2013/feb/04/sellafield-management-criticised-commons-committee |title=Sellafield management sharply criticised by Commons committee |author=Terry Macalister |newspaper=The Guardian |date=4 February 2013 |access-date=19 February 2013}}</ref><ref>{{cite report |url=https://publications.parliament.uk/pa/cm201213/cmselect/cmpubacc/746/746.pdf |title=Nuclear Decommissioning Authority: Managing risk at Sellafield |work=Committee of Public Accounts |publisher=House of Commons |date=23 January 2013 |access-date=19 February 2013}}</ref> Bosses were forced to apologise after projected clean-up costs passed the £70{{nbsp}}billion mark in late 2013.<ref>{{Cite news |last= Macalister |first= Terry |date= 4 December 2013 |title= Sellafield bosses forced to say sorry over £70bn-plus cleanup costs |url= https://www.theguardian.com/environment/2013/dec/04/sellafield-boss-sorry-over-cleanup-costs |publisher=[[The Guardian|theguardian.com]] |access-date= 5 December 2013 }}</ref> In 2014, the undiscounted decommissioning cost estimate for Sellafield was increased to £79.1{{nbsp}}billion,<ref>{{cite news|url=https://www.telegraph.co.uk/finance/newsbysector/energy/10921309/Britains-nuclear-clean-up-bill-soars-to-110bn.html|title=Britain's nuclear clean-up bill soars to £110bn|first=Emily|last=Gosden|publisher=The Telegraph|date=23 June 2014|access-date=13 January 2015}}</ref> and by 2015 to £117.4{{nbsp}}billion.<ref name=gov-20160901>{{cite web |url=https://www.gov.uk/government/publications/nuclear-provision-explaining-the-cost-of-cleaning-up-britains-nuclear-legacy/nuclear-provision-explaining-the-cost-of-cleaning-up-britains-nuclear-legacy#latest-estimate |title=Nuclear Provision: the cost of cleaning up Britain's historic nuclear sites |publisher=NDA |date=1 September 2016 |access-date=26 February 2017}}</ref> The annual operating cost will be £2{{nbsp}}billion in 2016.<ref name=wnn-20160106>{{cite news |url=http://www.world-nuclear-news.org/C-UK-decommissioning-agency-lays-out-plans-to-2019-06011501.html |title=UK decommissioning agency lays out plans to 2019 |publisher=World Nuclear News |date=6 January 2016 |access-date=26 February 2017}}</ref>

In 2018, the [[discount yield|discount rate]] used in evaluating future spending was changed from a [[HM Treasury]] determined real terms discount rate to a rate that combined a nominal discount rate and an implied inflation rate based on [[Consumer Price Index]] forecasts. This nearly halved the estimate of the remaining cost of decommissioning and clean-up.<ref name=nda-20190704>{{cite report |url=https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/814716/NDA_Annual_Report_and_Accounts_2018_to_2019v2.pdf |title=Annual Report & Accounts 2018/19 |id=HC 2425 |publisher=NDA |pages=84,104,163 |date=4 July 2019 |access-date=25 April 2020}}</ref>

The expenditure of the NDA in 2022/23 was £3,759M and income £1,059M, leading to a net expenditure of £2,700M.<ref>{{cite web |title=NDA Annual Report 2022 to 2023 |url=https://www.gov.uk/government/publications/nuclear-decommissioning-authority-annual-report-and-accounts-2022-to-2023/nda-annual-report-2022-to-2023#financial-summary-202223 |publisher=Nuclear Decommissioning Authority |access-date=29 February 2024}}</ref>