THE UK is investing £45 million into the UK’s first AI supercomputer to accelerate fusion energy as Britain invests £2.5 billion in the wider AI sector, with experts saying “this is the right direction, but the wrong scale” with Brits struggling with their bills.
Chancellor Rachel Reeves said yesterday that the UK will “achieve the fastest AI adoption in the G7”.
In a record funding announcement, UK AI and quantum technologies will receive £2.5 billion, anchoring the world’s most promising AI and quantum companies in Britain to ensure they start, scale and succeed in this country.
The UK government is investing £45 million for a supercomputer named ‘Sunrise’, a key first step in establishing the country’s first AI Growth Zone at the UK Atomic Energy Authority’s (UKAEA) Culham Campus in Oxfordshire.
Sunrise is targeted for operation in June this year and is primed to be the world’s most powerful AI supercomputer dedicated to fusion energy.
Funded by the Department for Energy Security and Net Zero (DESNZ), Sunrise will tackle key fusion energy challenges in areas such as plasma turbulence, materials development and tritium fuel breeding, while delivering spillover benefits to other clean energy technologies and the UK’s broader net zero ambitions.
It will deliver up to 6.76 Exaflops of AI-accelerated modelling, enabling high-fidelity simulations and the creation of digital twins for complex systems.
This is the right direction, but the wrong scale
Lord Vallance, Minister for Science, Innovation, Research and Nuclear, said: “We can be proud that Britain will lead the way on research, innovation and skills for a future of limitless fusion energy.
“By backing our fusion industry, we are not only securing our future energy independence, but from innovation and research to engineers, we are also providing the skilled clean energy jobs of the future for British people.”
Mitali Deypurkaystha, Human-First AI Strategist & Author at Newcastle upon Tyne-based Impact Icon AI, said while investment in AI is important, it comes at a time when Brits are struggling with their bills.
She added: “£45 million for an AI ‘supercomputer’ sounds sizeable, but it’s small against a surging household squeeze, as the Iran war delivers a direct hit to British bills. This is the right direction, but the wrong scale for a moment when global conflict is pushing energy costs through the roof whether we like it or not.
“We’re burning power to chase power, building an energy-hungry solution while families face energy-poor realities. Fusion matters for long-term security, but this risks looking like a symbolic signal rather than a serious shield. If Britain is serious about future-proofing energy, the response has to match the size and speed of the storm we’re already in.”
She continued: “£2.5 billion sounds bold, but it risks repeating a familiar pattern of big promises and brittle payoffs, with past projects delivering hundreds of permanent jobs where thousands were claimed.”
This investment is a really positive welcome announcement
Rohit Parmar-Mistry, Founder at Burton-on-Trent-based Pattrn Data, said the machine could just become an “expensive press release”.
He added: “£45 million for ‘Sunrise’ is a useful signal, but the real test is whether the UK treats this like mission infrastructure rather than a shiny procurement headline.
“The upside is speed: better turbulence modelling, quicker iteration on reactor components, and spillover into adjacent clean tech. The downside is predictable too: if access is stitched up by a small club, or the software and data plumbing is neglected, the machine becomes an expensive press release.”
He continued: “£2.5 billion matters, but the UK will not ‘win’ on headline funding alone. If the government wants the fastest AI adoption in the G7, the constraint is trust and execution: clear rules for high risk use, repeatable assurance, and a procurement model that rewards verified performance rather than glossy demos.”
Samuel Mather-Holgate, Managing Director & IFA at Swindon-based Mather and Murray Financial, said more needs to be done for the UK to catch up with the US and China in AI.
He added: “Innovation and tech is one of the few areas where the UK is still a true superpower. This investment is a welcome announcement that should stimulate growth in a really positive area of the economy.
“This is so important to the UK’s growth prospects over the next decade and it’s good to see that Britain will stay a leader in Europe, but more is needed from the government if we want to make inroads into the dominance the US and China have in this sector.”
Photo by Aleksander Saks on Unsplash.
