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The Hunterston nuclear power station in Scotland. Courtesy EDF Energy. The UK’s nuclear regulator said on Tuesday it had approved a restart of the B-1 and B2- nuclear power units at the Hunterston nuclear station in Scotland.

The Office for Nuclear Regulation (ONR) said on its website that the restart safety case is for up to 16.7 terawatt days for Hunterston B-1 and 16.52 terawatt days for Hunterston B-2 – approximately six month’s operation for each reactor.

This will be the facility’s final period of operation before moving into the defueling phase.

The ONR’s assessment for restart focussed on whether cracking observed in the graphite bricks that form the reactor core could compromise the key nuclear safety requirements.

The UK has a long history of using graphite as a moderator, from the early Magnox reactors to advanced gas-cooled reactors (AGRs) such as Hunterston.

Date: Wednesday, 14 April 2021
Original article: nucnet.org/news/regulator-approves-hunterston-restarts-after-graphite-core-checks-4-2-2021

A pre-construction design review of the Hitachi-GE ABWR in the UK has proceeded to the next phase. Following a preliminary phase that ended in January 2014, the reactor design completed an initial technical assessment in August. But there remains lots more work to do before final approval, tentatively scheduled for December 2017.

Date: Wednesday, 03 September 2014
Original article: neimagazine.com/news/newsabwr-passes-uk-gda-step-2-but-full-psa-needed-4360853

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