Office for Nuclear Regulation

UK Regulator for the nuclear industry

Office for Nuclear Regulation

Statutory corporation overview
Formed| 2011 (2011)
Jurisdiction| United Kingdom
Headquarters| Building 4, Redgrave Court, Merton Road, Bootle L20 7HS
Employees| 651 (as at 31 March 2021)
Annual budget| £95.04m (2021/22)
Statutory corporation executives|

* Mark Foy, Chief Executive/Chief Nuclear Inspector
* Nicola Crauford, Chair

Website| www.onr.org.uk

The Office for Nuclear Regulation (ONR) is the regulator for the nuclear industry in the United Kingdom.[1] It is an independent statutory corporation whose costs are met by charging fees to the nuclear industry. The ONR reports to the Department for Work and Pensions, although it also worked closely with the now-defunct Department of Energy and Climate Change.[2]

## History

[edit]

The establishment of the ONR followed a 2008 review conducted on behalf of the Government into the regulation of the UK civil nuclear industry, recommending the creation of a single industry-specific regulator. The ONR was created on 1 April 2011 as a non-statutory agency of the Health and Safety Executive (HSE), with the Government intending to put the ONR on a statutory basis at a later date.[3] The ONR was formed from the merger of the HSE's Nuclear Directorate (the Nuclear Installations Inspectorate, the Office for Civil Nuclear Security and the UK Safeguards Office) and — from 1 June 2011 — the Department for Transport's Radioactive Materials Transport Team.[4] Legislation to establish the ONR was included in the Energy Act 2013, and it was formally launched as an independent statutory corporation on 1 April 2014.[5] ONR’s original mission (as detailed in the DWP/ONR Framework document) was: "To provide efficient and effective regulation of the nuclear industry, holding it to account on behalf of the public". The 2013 Energy Act specified that ONR's five statutory purposes were: Nuclear safety; Nuclear site health and safety; Civil Nuclear security; Nuclear safeguards; Transport of radioactive materials.[6]

The ONR is governed by a ten-member board, and is accountable to Parliament through the Department for Work and Pensions (DWP) in matters of finance, governance and non-nuclear health and safety.[7] Nick Baldwin CBE, former chief executive of Powergen (now E.ON UK) was appointed part-time interim chair of the ONR on its formation,[1] resigning as a non-executive director of Scottish and Southern Energy.[8] On 21 February 2019, the Secretary of State for Work and Pensions announced that Mark McAllister would succeed Baldwin as Chair of the Board. Mark McAllister began his five-year appointment as ONR Chair on 1 April 2019.[9] The ONR Board oversees the operation of the Chief Executive Officer (CEO) and the Chief Nuclear Inspector (CNI). John Jenkins, who was CEO from 2013 to 2015, resigned from his post on 28 February 2015 and was replaced by Les Philpott on 1 March 2015 as the Interim Chief Executive. Adriènne Kelbie was appointed Chief Executive and took up the appointment on 18 January 2016.[10] In October 2017 Mark Foy was appointed Chief Nuclear Inspector; he was previously the Deputy Chief Nuclear Inspector.[11]

New leadership arrangements commenced on 1 June 2021 which saw Mark Foy become ONR's combined Chief Executive and Chief Nuclear Inspector.[12] Donald Urquhart was appointed Executive Director of Regulation and Sarah High as Deputy Chief Executive. Additionally, Paul Fyfe was appointed as Director of Regulation Civil Nuclear Security and Safeguards, Jane Bowie was appointed as Director of Regulation for New Reactors, Mike Finnerty was appointed Director of Regulation Operating Facilities, Paul Dicks was appointed Director of Regulation Sellafield, Decommissioning Fuel and Waste and Steve Vinson was appointed Technical Director.

As of 2021 the ONR had about 650 staff and a budget of £95.05 million, which was largely cost-recovered from users, with a 2% grant from the DWP.

## Generic Design Assessment process

[edit]

Following the 2006 Energy review the Nuclear Installations Inspectorate developed the Generic Design Assessment process (GDA), now operated by ONR, to assess new nuclear reactor designs ahead of site-specific proposals.[13] The GDA initially started assessing four designs:

* Westinghouse AP1000
* Areva EPR
* CANDU ACR-1000
* GE-Hitachi ESBWR

However the ACR-1000 and ESBWR were subsequently withdrawn from the assessment for commercial reasons,[14][15] leaving the EPR and AP1000 as contenders for British new nuclear builds.[16][17] Assessment of the AP1000 was suspended in December 2011 at Westinghouse's request, awaiting a firm UK customer before addressing issues raised by the assessment.[18][19]

In 2012 Hitachi purchased Horizon Nuclear Power, announcing intent to build two to three 1,350 MWe Advanced Boiling Water Reactors (ABWR) on both of Horizon's sites.[20] The GDA was agreed in April 2013.[18]

In August 2014 Westinghouse resumed the AP1000 assessment, after Toshiba and ENGIE purchased NuGeneration and announced plans to develop Moorside Nuclear Power Station with 3 AP1000s. In November 2016 the ONR noted there was a "very large amount of assessment to complete with issues still emerging".[21][22] On 30 March 2017 the AP1000 successfully completed the GDA process,[23] ironically the day after the designer, Westinghouse, filed for Chapter 11 bankruptcy because of $9 billion of losses from its nuclear reactor construction projects, mostly the construction of four AP1000 reactors in the U.S.[24]

On 21 September 2015 Energy Secretary Amber Rudd announced that a Chinese designed nuclear power station was expected to be built at Bradwell nuclear power station.[25][26][27] On 19 January 2017 the GDA process for the Hualong One (HPR1000) started,[28] and successfully finished in February 2022.[29]

The ABWR GDA process completed successfully in December 2017.[30]

### 2020 process update

[edit]

In 2020, the GDA process was updated to be more suitable for small modular reactors and advanced nuclear technologies. A three step process was introduced:[31]

* Step 1: initiates GDA and agrees scope and timescales, identifying any immediate gaps in meeting regulatory expectations.
* Step 2: fundamental assessment of the generic safety, security, and environment protection cases, to identify any potential "show-stoppers" that may preclude deployment of the design.
* Step 3: detailed assessment of the generic safety, security, and environment protection cases on a sampling basis.

On 1 April 2022, the GDA Step 1 of the 470 MWe Rolls-Royce SMR started.[32] Step 2 will begin once the timescales and resources have been agreed.[33]

## Nuclear defence activities

[edit]

See also: Royal Navy Submarine Service, UK Trident programme, and Rolls-Royce PWR

Although the ONR is primarily a civil regulator, the ONR Defence Programme regulates military nuclear and conventional safety across a number of licensed and non-licensed nuclear sites, which are operated for the Ministry of Defence (MOD) nuclear defence capability. This is carried out under a complex legal regime, in conjunction with MOD’s Defence Nuclear Safety Regulator (DNSR). The ONR does not influence the design of submarine nuclear power plants or nuclear weapons, and does not regulate security or transport of MOD nuclear materials.[34]

ONR responsibility includes assessing the response systems for nuclear weapon accidents at HMNB Clyde and RNAD Coulport, in Argyll, Scotland.[35]

Since about 2013 the ONR has given the two major Atomic Weapons Establishment (AWE) sites enhanced regulatory attention due to "safety and compliance concerns, and the continued undertaking of operations in ageing facilities due to delays to the delivery of modern standard replacement facilities." The ONR anticipated AWE would move back to normal regulatory attention in 2021 after the new facilities are completed.[36]

## See also

[edit]

* Energy portal

* Nuclear power in the United Kingdom

## References

[edit]

1. ^ a b New UK nuclear industry regulator launched Archived 9 April 2011 at the Wayback Machine HSE, accessed 3 April 2011
2. ^ "Who we work with". ONR. Retrieved 2 April 2014.
3. ^ Creation of the Office for Nuclear Regulation – Written ministerial statement from the Department for Work and Pensions Archived 30 April 2011 at the Wayback Machine published 2011-02-08, accessed 3 April 2011
4. ^ Proposed changes to the way we work Archived 30 April 2011 at the Wayback Machine HSE, accessed 3 April 2011
5. ^ "ONR becomes Public Corporation". ONR. 1 April 2014. Retrieved 2 April 2014.
6. ^ "DWP/ONR Framework document" (PDF). Office for Nuclear Regulation. February 2016. Retrieved 7 June 2021.
7. ^ "UK regulator outlines plan to 'remain fit for future'". World Nuclear News. 7 July 2017. Retrieved 10 July 2017.
8. ^ Baldwin leaves SSE board Herald Scotland, published 2011-04-02, accessed 3 April 2011
9. ^ "Mark McAllister appointed as ONR Chair". ONR. 21 February 2019. Retrieved 7 June 2021.
10. ^ "ONR announces new Chief Executive". ONR. 28 October 2015. Retrieved 7 June 2021.
11. ^ "UK gets new chief nuclear inspector". Nuclear Engineering International. 30 October 2017. Retrieved 5 November 2017.
12. ^ "New leadership structure implemented". ONR. June 2021. Retrieved 1 June 2021.
13. ^ "Background – assessment of new nuclear power stations". Health and Safety Executive. Retrieved 24 July 2012.
14. ^ "AECL bows out of British reactor development to focus on Canadian projects". CBC News. 4 April 2008. Retrieved 10 March 2009.
15. ^ "Interview: "We will be back" in Europe, says GE". Nuclear Engineering International. 15 September 2009. Archived from the original on 5 May 2012. Retrieved 24 July 2012.
16. ^ "New Nuclear Power Stations – Progress so far". Health and Safety Executive. Archived from the original on 1 June 2009. Retrieved 15 September 2009.
17. ^ "News – Taking GDA work forward in the light of the unprecedented events in Japan". Health and Safety Executive. Archived from the original on 28 December 2011. Retrieved 19 April 2012.
18. ^ a b "UK starts ABWR design assessment". World Nuclear News. 10 April 2013. Retrieved 22 April 2013.
19. ^ Twidale, Susanna (30 March 2017). "Westinghouse set to win UK reactor approval". Reuters. Retrieved 6 April 2022.
20. ^ "Hitachi buys UK nuclear project from E.On and RWE". BBC. 30 October 2012. Retrieved 30 October 2012.
21. ^ "UK regulator reports 'slippage' in assessment of AP1000 design". World Nuclear News. 8 January 2016. Retrieved 14 February 2017.
22. ^ "UK regulators question Westinghouse's target date for AP1000 GDA". World Nuclear News. 28 November 2016. Retrieved 14 February 2017.
23. ^ "Westinghouse AP1000 completes GDA process in the UK". Nuclear Engineering International. 3 April 2017. Retrieved 4 April 2017.
24. ^ "Westinghouse files for bankruptcy". Nuclear Engineering International. 29 March 2017. Retrieved 4 April 2017.
25. ^ George Parker (21 September 2015). "UK paves path for west's first China-designed nuclear reactor". Financial Times. Retrieved 22 September 2015.
26. ^ "China ready to build new nuclear plant at Bradwell-on-Sea". Essex Chronicle. 21 September 2015. Archived from the original on 25 September 2015. Retrieved 22 September 2015.
27. ^ "UK to start regulatory assessment of Chinese design". World Nuclear News. 10 January 2017. Retrieved 16 January 2017.
28. ^ "UK GDA reports good progress for AP1000 and UK ABWR". Nuclear Engineering International. 23 March 2017. Retrieved 28 March 2017.
29. ^ "Regulators complete UK HPR1000 design assessment". Nuclear Engineering International. 10 February 2022. Retrieved 5 April 2022.
30. ^ "Hitachi-GE ABWR design cleared for use in UK". World Nuclear News. 14 December 2017. Retrieved 17 December 2017.
31. ^ "Entry to Generic Design Assessment for Advanced Nuclear Technologies: Instructions and Guidance for Requesting Parties" (PDF). Department for Energy Security & Net Zero. July 2023. Retrieved 31 December 2023 – via gov.uk.
32. ^ "Rolls-Royce SMR begins UK Generic Design Assessment". Nuclear Engineering International. 4 April 2022. Retrieved 5 April 2022.
33. ^ "Current reactors being assessed". Office for Nuclear Regulation. Retrieved 20 December 2022.
34. ^ Regulation of GB's Defence Nuclear Programme (PDF) (Report). Office for Nuclear Regulation. January 2019. NS-INSP-GD-056. Retrieved 15 March 2019.
35. ^ "HM Naval Base Clyde – Quarterly report for 1 July 2011 to 30 September 2011". Bootle: Office for Nuclear Regulation, Health and Safety Executive. Archived from the original on 8 July 2013. Retrieved 13 April 2012.
36. ^ "Safety concerns over Berkshire nuclear weapons factories". BBC News. 18 October 2019. Retrieved 4 November 2019.

## External links

[edit]

* Official website

Links to related articles

* v
* t
* e

Nuclear power in the United Kingdom

* Energy in the United Kingdom
* Nuclear power

Companies|

| Current|

* Great British Energy – Nuclear
* EDF Energy
* Nuclear Restoration Services
* Rolls-Royce
* Sellafield Ltd
* Sheffield Forgemasters
* Urenco

New build operators|

* NNB Generation Company
* Horizon Nuclear Power

Defunct|

* British Energy
* British Nuclear Group
* Magnox Electric
* Nuclear Electric
* Scottish Nuclear
* NuGeneration

Organisations|

* Civil Nuclear Constabulary
* Nuclear Decommissioning Authority
* Nuclear Industry Association
* Nuclear Institute
* Nuclear Liabilities Fund
* Office for Nuclear Regulation
* United Kingdom Atomic Energy Authority
* United Kingdom National Nuclear Laboratory

Reactors|

| AGR|

* Hartlepool
* Heysham 1
* Heysham 2
* Torness

|

AGR (closed)|

* Dungeness B
* Hinkley Point B
* Hunterston B

FBR (closed)|

* Dounreay

Magnox (closed)|

* Berkeley
* Bradwell
* Calder Hall
* Chapelcross
* Dungeness A
* Hinkley Point A
* Hunterston A
* Oldbury
* Sizewell A
* Trawsfynydd
* Wylfa

PWR|

| Active|

* Sizewell B

|

Planned|

* Bradwell B
* Hinkley Point C
* Moorside
* Sizewell C

Non-reactor sites|

* Capenhurst
* uranium enrichment
* Sellafield
* Thermal Oxide Reprocessing Plant
* Windscale fire
* Springfields (fuel manufacture)
* Winfrith (research and development)

Anti-nuclear|

* Energy Fair

Other|

* Franco-British Nuclear Forum
* Nuclear or Not?
* Nuclear Power and the Environment
* Nuclear power in Scotland
* Sustainable Development Commission

Category

* v
* t
* e

Energy in Scotland

* Energy in the United Kingdom

Sectors|

* Nuclear power
* Renewable energy
* Wind power

Companies and
organisations|

| Current|

* Community Energy Scotland
* EDF Energy
* European Marine Energy Centre
* FREDS
* National Grid
* Office for Nuclear Regulation
* Scottish Gas
* Scottish Government (Energy Directorate)
* ScottishPower
* SGN
* SSE
* John Wood Group

|

Defunct|

* Aquamarine Power
* British Energy
* North of Scotland Hydro-Electric Board
* Pelamis Wave Power
* Scottish Hydro Electric
* Scottish Nuclear
* South of Scotland Electricity Board
* Wavegen

Active power
stations|

| Hydro|

* Affric-Beauly
* Arran
* Awe
* Breadalbane
* Chliostair
* Conon
* Cruachan
* Foyers
* Galloway
* Garry (Great Glen)
* Gisla
* Glendoe
* Inver
* Kerry Falls
* Kilmelfort
* Kinlochewe-Talladale
* Lanark
* Loch Dubh
* Loch Gair
* Lochaber
* Lussa
* Morar
* Moriston (Great Glen)
* Mucomir
* Nostie Bridge
* Shin
* Shira
* Sloy
* Storr Lochs
* Striven
* Tummel

|

Nuclear|

* Torness

Oil and gas|

* Lerwick
* Peterhead
* Stornoway

Tidal|

* MeyGen

Wind|

* Ardrossan
* Arecleoch
* Beatrice
* Beinn an Tuirc
* Black Law
* Braes of Doune
* Clyde
* Cruach Mhòr
* Crystal Rig
* European Offshore Wind Deployment Centre
* Farr
* Hadyard Hill
* Hare Hill
* Hywind
* Kilgallioch
* Pates Hill
* Seagreen
* Whitelee

Other|

* Dundee Incinerator
* Greengairs
* Lerwick District Heating and Energy Recovery Plant
* Steven's Croft
* Westfield

Deactivated
stations|

| Coal|

* Pinkston (1960s)
* Yoker (1976)
* Portobello (1977)
* Barony (1980s)
* Braehead (1980s)
* Kincardine (1997)
* Methil (2000)
* Cockenzie (2013)
* Longannet (2016)

|

Nuclear|

* Hunterston A (1990)
* Dounreay (1994)
* Chapelcross (2004)
* Hunterston B (2022)

Oil and gas|

* Inverkip (1988)
* Fife (2011)

Other|

* Energy policy of Scotland
* Sustainable development in Scotland

* Category
* Commons

* v
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Energy in the United Kingdom

Companies

| Coal|

* Anglo American
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* ENRC
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|

Oil and
gas|

| Integrated|

* BP
* Shell

|

Exploration
and production|

* Afren
* BHP
* Capricorn Energy
* Centrica
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* Emerald Energy
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* Perenco
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* Rockhopper Exploration
* Star Energy
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Supply|

* Greenergy
* Murco Petroleum

Support|

* Abbot Group
* Amec Foster Wheeler
* Expro
* Hunting
* John Wood Group
* Petrofac
* Qserv
* Weir Group
* WesternGeco1

Utilities|

| Integrated|

* Centrica
* E.ON UK1
* EDF Energy1
* Npower1
* ScottishPower1
* SSE

|

Generation
and supply|

| Generation|

* Drax Group
* Engie Energy International
* Horizon Nuclear Power1
* Renantis
* Vattenfall UK1
* Vedanta Resources

|

Supply|

* 100Green
* Bristol Energy
* Co-op Energy
* Ecotricity
* ESB Group
* Firmus Energy
* Good Energy
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* Outfox the Market
* OVO Energy
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* Utilita Energy
* Utility Warehouse

Distribution|

| Electricity|

* Electricity North West1
* Northern Powergrid1
* SP Energy Networks1
* SSE Power Distribution
* UK Power Networks1
* Western Power Distribution1

|

Gas|

* Cadent Gas
* Firmus Energy
* Northern Gas Networks
* Phoenix Natural Gas
* SGN
* Wales & West Utilities1

Transmission|

| Electricity|

* National Grid2
* Scottish Hydro Electric Transmission
* SP Energy Networks1

|

Gas|

* National Grid

Other|

* Aggreko
* APX Group
* Aquamarine Power
* EnServe
* Hi-Gen Power
* Mark Group
* United Downs Deep Geothermal Power
* Wavegen

Companies with headquarters and/or registered office in the UK but no applicable energy operations within the country shown in italics 1Ultimate parent company is not UK-based 2Integrated in the United States, no generation or supply activities in the UK

Energy sources

| Coal|

* Coal Authority
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* Coal mining regions
* Confederation of UK Coal Producers
* Greenhouse gas emissions
* History
* miners' strike
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* Open-pit coal mining

|

Electricity|

* Association of Electricity Producers
* BritNed
* East–West Interconnector
* Economy 7
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* Electricity billing
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* National Grid
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* North Sea Link
* Power stations
* Timeline of the electricity supply industry

Nuclear|

* Advanced Gas-cooled Reactor
* Franco-British Nuclear Forum
* Magnox
* Nuclear Decommissioning Authority
* Nuclear Liabilities Fund
* Nuclear power stations
* Office for Nuclear Regulation
* Sellafield
* United Kingdom Atomic Energy Authority
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Oil and gas|

* BBL Pipeline
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* Offshore Energies UK
* Oil fields
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* Oil infrastructure
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* Petroleum Revenue Tax

Renewables|

| Biofuels|

* Biofuel power stations
* NNFCC
* Renewable Fuels Agency
* Renewable Transport Fuel Obligation

|

Geothermal|

* Geothermal power stations

Hydroelectricity|

* Hydroelectric power stations
* Mersey Barrage
* Severn Barrage
* Wave farms

Solar power|

Wind power|

* Offshore wind power
* List of offshore wind farms
* List of onshore wind farms
* North Seas Energy Cooperation
* Wind power in Scotland

Government and regulation

| Organisations|

* Carbon Trust
* Cenex
* Climate Change Committee
* Department for Energy Security and Net Zero
* Department for Environment, Food and Rural Affairs
* Energy Saving Trust
* Environment Agency
* Office of Gas and Electricity Markets
* National Energy System Operator
* System Operator for Northern Ireland
* Scottish and Southern Electricity Networks
* Great British Energy
* Great British Energy – Nuclear

|

Legislation and initiatives|

* Carbon Emission Reduction Target
* Climate Change Act 2008
* Climate Change Agreement
* Climate Change and Sustainable Energy Act 2006
* Climate Change Levy
* CRC Energy Efficiency Scheme
* Decarbonisation measures in proposed UK electricity market reform
* Display Energy Certificate
* Energy Act 2013
* Energy performance certificate
* Fossil Fuel Levy
* Low Carbon Building Programme
* Non-Fossil Fuel Obligation
* Planning Act 2008
* Renewable Heat Incentive
* Renewables Obligation
* United Kingdom Climate Change Programme
* Energy price cap
* Energy Profits Levy

Non-governmental organisations

| Charities and
pressure groups|

* Ashden Award
* Bioregional
* Campaign against Climate Change
* Centre for Alternative Technology
* National Energy Action
* Stop Climate Chaos
* Tyndall Centre

|

Industry bodies|

* Association for Decentralised Energy
* Energy Institute
* Energy Networks Association
* Energy Retail Association
* Green Power Forum
* RenewableUK
* Utilities Intermediaries Association

Research|

* Centre for Renewable Energy Systems Technology
* Energy Technologies Institute
* Met Office Hadley Centre
* Narec
* Oil Depletion Analysis Centre
* Sunbury Research Centre
* UK Energy Research Centre

Energy conservation

* British Energy Efficiency Federation
* Close the Door campaign
* Code for Sustainable Homes
* Double Glazing & Conservatory Ombudsman Scheme
* EcoHomes
* Energy efficiency in British housing
* Energy Saving Trust
* Energy Saving Trust Recommended
* Greenhouse gas emissions
* HTB
* National Home Energy Rating

* Category

* v
* t
* e

Radiation protection

Main articles|

* Background radiation
* Dosimetry
* Health physics
* Ionizing radiation
* Internal dosimetry
* Radioactive contamination
* Radioactive sources
* Radiobiology

Measurement
quantities and units|

* Absorbed dose
* Becquerel
* Committed dose
* Computed tomography dose index
* Counts per minute
* Effective dose
* Equivalent dose
* Gray
* Mean glandular dose
* Monitor unit
* Rad
* Roentgen
* Rem
* Sievert

Instruments and
measurement techniques|

* Airborne radioactive particulate monitoring
* Dosimeter
* Geiger counter
* Ion chamber
* Scintillation counter
* Proportional counter

* Radiation monitoring
* Semiconductor detector
* Survey meter
* Whole-body counting

Protection techniques|

* Lead shielding
* Glovebox
* Potassium iodide
* Radon mitigation
* Respirators

Organisations|

* Euratom
* HPS (USA)
* IAEA
* ICRU
* ICRP
* IRPA
* SRP (UK)
* UNSCEAR

Regulation|

* IRR (UK)
* NRC (USA)
* ONR (UK)
* Radiation Protection Convention, 1960

Radiation effects|

* Acute radiation syndrome
* Radiation-induced cancer

See also the categories Medical physics, Radiation effects, Radioactivity, Radiobiology, and Radiation protection
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