Rolls-Royce SMR is first ever UK reactor design to be submitted for consideration. Evaluation of potential benefits and detriments is required for in-principle justification of any new nuclear practice

The Nuclear Industry Association has applied for a justification decision for Rolls-Royce SMR’s reactor design. Our application makes the case that the benefits of clean, firm, flexible power from the reactor would far outweigh any potential risks, which are in any event rigorously controlled by robust safety features, including passive safety systems, built into the design, in line with the UK’s regulatory requirements.

The application also demonstrates that the reactor design would support nuclear energy’s contribution to a stable and well-balanced electricity grid, which is essential to reduce consumer bills and maintain economic competitiveness.

Justification is a regulatory process which requires a Government decision before any new class or type of practice involving ionising radiation can be introduced in the UK.

A justification decision is one of the required steps for the operation of a new nuclear technology in the UK, but it is not a permit or licence that allows a specific project to go ahead. Instead, it is a generic decision based on a high-level evaluation of the potential benefits and detriments of the proposed new nuclear practice as a pre-cursor to future regulatory processes.

This is the first ever application for justification of a UK reactor design. The UK Government has confirmed that the application has been accepted for consideration, and the Department for Environment, Food and Rural Affairs will support the Secretary of State in their role as the justifying authority responsible for the justification decision.

Tom Greatrex, Chief Executive of the Nuclear Industry Association, said:

“Rolls-Royce SMR’s design, like other SMRs, offer huge possibilities for the UK to revive our industrial capabilities and deliver low-carbon energy for net zero and energy security. We are delighted to support this step to get the design approved in its home country. It is essential that our nuclear renaissance is made in Britain, so the new Government should ensure that we deploy enough SMR designs to justify investment in the UK supply chain to deliver them.”

Helena Perry, Rolls-Royce SMR’s Safety and Regulatory Affairs Director, said:

“As the UK’s most advanced SMR design, today’s submission for regulatory justification is another important step to ensure that we can continue to move at pace towards deployment in the UK. Each Rolls-Royce SMR ‘factory-built’ nuclear power plant will provide enough clean, affordable, electricity to power a million homes for 60+ years – delivering energy security, enabling net zero and making a transformational contribution to the UK economy. Rolls-Royce SMR remains on track to complete Step 2 of the Generic Design Assessment by the nuclear industry’s independent regulators and move immediately into the third and final step this summer.”

ENDS

Notes to editors

  1. The Justification of Practices Involving Ionising Radiation Regulations 2004, as amended, can be found here: The Justification of Practices Involving Ionising Radiation Regulations 2004 (legislation.gov.uk). The regulations require that any new practice that produces ionising radiation is justified by an evaluation of the potential benefits and the potential detriments.
  2. Justification applications, including this one, are listed here: Justification of Practices Involving Ionising Radiation application register.
  3. DEFRA will now conduct a process of internal review and consultation with a number of statutory consultees.
  4. The Nuclear Industry Association, as the representative body of the UK civil nuclear industry, often makes justification applications, because justification is generic decisions can be relied upon by anyone and are not personal to individual reactor vendors or project developers. The NIA was applicant for the Advanced Boiling Water Reactor (ABWR) designed by Hitachi, the Advanced Passive 1000 (AP1000) reactor designed by Westinghouse  and the European Pressurised Reactor (EPR) designed by AREVA (now Framatome).
  5. The UK has five generating nuclear power stations, providing around 15% of the country’s electricity from 5.9 GW of capacity.
  6. According to the United Nations Economic Commission for Europe, Carbon Neutrality in the UNECE Region: Integrated Life-cycle Assessment of Electricity Sources, nuclear power has the lowest lifecycle carbon footprint, lowest lifecycle land use, and lowest lifecycle impact on ecosystems of any electricity generating source.
  7. Find out more about the Rolls-Royce SMR design, ask a question or leave a comment at GDA.rolls-Royce-SMR.com.

About the NIA
The NIA is the trade body of the UK civil nuclear industry, representing more than 300 companies operating across the sector.

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