Office for Nuclear Regulation, Environment Agency & Natural Resources Wales

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UK Advanced Boiling Water Reactor (UK ABWR)

Image copyright Hitachi-GE

Designer (requesting party): Hitachi-GE

Current positon: Step 3 (detailed assessment)

Timeline:

  • January 2013 - Request from Minister for State for Energy to start GDA of the ABWR
  • April 2013 - Jan 2014 - step 1 (preparatory step)
  • Jan 2014 - Aug 2014 - step 2 (initial assessment)
  • Aug 2014 - Oct 2015 - step 3 (detailed assessment)
  • Nov 2015 - Dec 2017 - step 4 (detailed design, safety case and security evidence assessment)
  • Dec 2017 - Design acceptance granted, subject to timely and quality submissions by Hitachi-GE

Make a comment about the UK ABWR design

You can make a comment about the UK ABWR design via Hitachi-GE's website. Hitachi-GE will respond to the comments and issues raised.

Find out the process

Progress reports

At the end of each step of the assessment, the regulators publish detailed technical reports and a summary report.

Find out more about progress reports

Regulatory Observations and Resolution Plans

A regulatory observation is a potential regulatory shortfall identified by the regulators. It requires action and new work for it to be addressed. There are currently 37 regulatory observations for the UK ABWR. Hitachi-GE has published resolution plans for all of the observations, outlining the action they will take to address the shortfall.

Find out more about Regulatory Observations

Regulatory Issues and Resolution Plans

A regulatory issue is a serious regulatory shortfall identified by the regulators. The issues are potentially significant enough to prevent provision of design acceptance. There are currently two regulatory issues for the UK ABWR. Hitachi-GE has published resolution plans outlining the action they will take to address the issues.

Find out more about Regulatory Issues