Developing fusion technologies for a low carbon future with supercomputers and AI
07 Jun 2022
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STFC’s Hartree Centre and the UK Atomic Energy Authority (UKAEA) are using supercomputing and Artificial Intelligence to design technologies to make fusion energy a commercial reality.

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Fusion energy has the potential to be a revolutionary and limitless energy source that will help us reduce our dependence on fossil fuels and tackle climate change.

The collaboration is now progressing into an exciting second phase of a five-year joint project designed to help scientists develop viable fusion energy technologies virtually, rather than via expensive, real world prototyping.

Four million times more energy than fossil fuels

Fusing atoms together generates nearly four million times more energy than a chemical reaction, such as the burning of coal, oil or gas, and four times more than nuclear fission.  

Its advantages are far reaching, and include:

  • No greenhouse gasses
  • No long term radioactive waste
  • It is virtually unlimited
  • It is intrinsically safe

A strategy for the future

In 2021, the Government published the UK Fusion Strategy (PDF 5.6MB), setting out how it will enable fusion energy. As part of this, UKAEA, a global leader in fusion energy science and technology, is responsible for STEP (Spherical Tokamak for Energy Production) the UK’s first prototype facility, that will pave the way for commercial development of fusion power stations.

Last year, in support of this, the Hartree Centre and the UKAEA took the first steps towards creating a UK Centre of Excellence in Extreme Scale Computing for Fusion, at STFC’s Daresbury Laboratory, at Sci-Tech Daresbury.

Home to some of the most advanced supercomputing and artificial intelligence technologies in the UK, the Hartree Centre will help scientists develop the necessary reactor technologies quicker and more affordably. 

Star Maker

Fusion is a natural process that powers the sun and other stars.  More specifically, it is the process by which certain isotopes of hydrogen, found in seawater, are fused together to create heavier particles and release energy.

Whilst this process requires extreme temperatures and intense gravitational forces equivalent to those found on the Sun, scientists have already had great success recreating this process on Earth, with record-breaking sustained fusion energy results announced earlier this year.

However, many complex engineering hurdles must be overcome before fusion energy can be produced as part of a large-scale, affordable low carbon energy supply for the future.


These include:

  • producing and managing the ultra-hot gas (plasma) where the fusion process happens
  • challenges in the development of materials that can tolerate extreme conditions, such as withstanding particles heated to hundreds of millions of degrees.

Ultimate engineering challenges

The second phase of the initial five-year project involves more than 30 members of staff from both the UKAEA and the Hartree Centre. Thanks to additional funding, 12 dedicated members of staff are located at the Hartree Centre.

Together, they are applying the latest supercomputing systems, artificial intelligence and data science expertise to address the challenges and barriers to the delivery of commercial fusion energy.

They will develop technologies for:

  • modelling and understanding plasma.
  • modelling ‘digital twins’ of future fusion power plants.
  • developing prototype tools for advanced data management.
  • using AI tools to give key insights, such as into machine control and uncertainty quantification.

World leading capabilities

Rob Akers, Head of Advanced Computing at UKAEA, said:

“As fusion enters the delivery era and we see the emergence of the world’s first exascale supercomputers, there couldn’t be a better time for STFC Hartree Centre and UKAEA to join forces on a mission to help deliver commercial fusion.

“Hartree Centre’s expertise in supercomputing and AI, combined with UKAEA’s domain expertise around fusion science and technology, will enable the co-design of solutions to eliminate large amounts of time-consuming real-world prototyping.

“This is an incredibly exciting endeavour that will help to make fusion an environmentally responsible part of the world’s future energy supply and also presents an exciting economic opportunity for the UK.”

Accelerating the UK fusion programme

Professor Kate Royse, Director at STFC’s Hartree Centre, said:

“While fusion might not power the world for some time yet, we are laying the foundations for it now through world leading research, skills and development.

It is fantastic to be working in such close collaboration with UKAEA, to co-design the tools, technologies and methods required by industry to accelerate the UK fusion programme.

As the UK’s only supercomputing centre dedicated to supporting industry, I believe strongly that Hartree Centre’s unique, world-class expertise will be essential to support the timely delivery of commercial fusion energy.”

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