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Office for Nuclear Regulation (ONR)

4N.2 Redgrave Court, Desk 26
Merton Road
L20 7HS

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Article archive for Office for Nuclear Regulation (ONR);

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Chief Nuclear Inspector recognises improvements across UK nuclear sector, but says more must be done 29 October 2019

In his first Annual Report on the UK’s nuclear industry, Chief Nuclear Inspector (CNI) Mark Foy said that although the sector had overall continued to meet the high standards of safety and security required to protect workers and the public, there remained room for improvement....

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ONR gives details of serious incident at Heysham 1 nuclear power station 01 June 2015

In its quarterly statement on serious incidents at nuclear installations in Britain, the UK’s Office for Nuclear Regulation (ONR) has given details of a major CO2 leak on 16 March 2015 at EDF’s Heysham 1 nuclear power station in Lancashire. There was no immediate nuclear safety or radiological risk as a result of the event, the ONR said, but it nevertheless had serious implications....

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UK nuclear regulator issues Improvement Notice to Dounreay after October fire 19 December 2014

The Office for Nuclear Regulation (ONR) has served Dounreay Site Restoration Limited (DSRL) with an Improvement Notice as a result of a fire at the sodium tank farm of the Prototype Fast Reactor (PFR) at its Caithness site in October 2014. No personnel were injured as a result of the fire which broke out in the early hours of the morning on 7 October 2014....

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UK regulators clear ABWR nuclear reactor design for next step 01 September 2014

Horizon Nuclear Power has moved one step closer to deployment of the UK Advanced Boiling Water Reactor (UK ABWR) following confirmation from nuclear and environment regulators that the design has been cleared to move on to Step 3 of the Generic Design Assessment (GDA) process in September. The design will be used in nuclear power stations to be built at Wylfa in Anglesey and Oldbury in Gloucestershire....

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Steam leak shuts Wylfa nuclear plant 07 July 2014

A steam leak caused the shutdown of one of the turbines at the Wylfa nuclear power plant on Anglesey, operator Magnox Ltd said on July 4. A spokesperson for the company said no radioactivity had been released, the steam escape was not from the nuclear reactor and there were no injuries....

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Babcock/Fluor joint venture wins £7bn UK nuclear decommissioning contract 01 April 2014

The £7 billion contract to decommission 12 major nuclear sites across the UK has been awarded to Cavendish Fluor Partnership (CFP), a joint venture between Babcock International subsidiary Cavendish Nuclear and US-based Fluor Corporation. CFP beat three other teams to the contract, including the current Magnox sites manager, EnergySolutions....

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UK nuclear regulator becomes independent public corporation 01 April 2014

The Office for Nuclear Regulation (ONR) is established today as a public corporation, under the Energy Act 2013. This is a significant milestone in its journey to become a modern, responsive, independent regulator.  This change in status puts the UK independent regulator in a stronger position to fulfil its mission to provide efficient and effective regulation of the nuclear industry....

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ONR gives go-ahead for new uranium facility at UK Atomic Weapons Establishment 26 July 2013

The Office for Nuclear Regulation has given permission to AWE to proceed further with the construction of a new facility at its Aldermaston site. This permission marks a significant milestone for AWE in its work to modernise and rebuild the facilities needed for the maintenance of Britain’s nuclear deterrent.  ...

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Sellafield fined £700,000 after incorrect disposal of radioactive waste 17 June 2013

Sellafield Limited has been fined £700,000 and ordered to pay £72,635.34 in costs at Carlisle Crown Court on June 14 for sending several bags of radioactive waste to a landfill site in Cumbria. The bags should have been sent to a specialist facility that treats and stores low level radioactive waste....

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ONR says Belgian nuclear plant defects will not impact UK reactors 12 June 2013

Inspectors from the Office for Nuclear Regulation have completed their assessment of a review at both Sizewell B and proposed new power station Hinkley Point C after defects were found at similar plants in Belgium. Inspections in 2012 at the Doel 3 and Tihange 2 nuclear plants revealed defects  in the reactor pressure vessels, which have some safety significance....