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Hinkley Point C’s first reactor ready for delivery

Posted on 20 Dec 2022. Edited by: John Hunter. Read 2030 times.
Hinkley Point C’s first reactor ready for delivery The first nuclear reactor built for a British power station in more than 30 years has now been completed and is ready for delivery to Hinkley Point C in Somerset. The ‘reactor pressure vessel‘ is the high-strength steel cylinder that contains the nuclear fuel and the chain reaction needed to make heat. The heat is used to create high pressure steam for the world’s largest turbines. Teams have spent 80,000 engineering hours on its construction.

At just 13m long and weighing in at 500 tonnes, each of two reactor pressure vessels at Hinkley Point C will help power around 3 million British homes and are designed to run continuously for 18 months at a time between refuelling.

The reactor has been built in France by Framatome, the same nuclear engineering company that built Britain’s last nuclear reactor, at Sizewell B in 1991. Since it went into operation in 1995, that reactor has provided 247TWH, which is enough to power every home in Britain for 2.5 years.

The centre of the reactor will have an average temperature of around 300°degC and can withstand five-times more pressure than a submarine at normal operating depths. The building which will house the reactor is also taking shape in Somerset. ‘Big Carl’, the world’s largest crane, lifted the final 11.6m prefabricated steel ring into place on Unit One - which now stands 44m tall.

The completion of the first reactor pressure vessel marks a major milestone in the construction of Hinkley Point C. Together, the two nuclear reactors will offset 600-million tonnes of CO2 emissions over its 60-year lifetime – driving Britain towards ‘net zero’ and stronger energy security.