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Big Carl Places 245-Tonne Dome to Accelerate Hinkley Point C’s Second Reactor Fit-Out

The dome installation recovers pandemic delays, paving the way for quicker delivery of future UK nuclear projects

"Big Carl" lifting the Unit 2 dome.
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Overview

  • Engineers used ‘Big Carl’, the world’s largest crane, to position the 245-tonne, 14-metre dome on the second reactor building at Hinkley Point C this week.
  • The new dome seals off the 44-metre-high structure, allowing interior fit-out to proceed with 20–30% time savings under the “build and repeat” approach.
  • EDF Energy reports that teams have recovered lost ground after pandemic work stoppages, keeping Unit 2 on an accelerated schedule.
  • The UK Government has confirmed plans to replicate Hinkley Point C’s design at Sizewell C and to pursue small modular reactors to boost capacity.
  • When complete, the twin reactors are expected to deliver zero-carbon electricity for over six million homes while creating jobs and supply-chain opportunities in Somerset.