AI Power Demands Fuel China's Nuclear Fusion Drive: Implications for UK

28 September 2026 19 min readSource: ft.com
AI energy demand accelerates China’s quest for nuclear fusion

Executive summary

China is accelerating its nuclear power development, including conventional reactors, small modular reactors (SMRs), and nuclear fusion, largely due to the escalating energy demands of its AI sector. This strategic push aims to secure energy supply and establish technological leadership amidst increasing electricity consumption driven by AI data centres.

Reporting based on ft.com

Why it matters

For UK AI and energy stakeholders, China's aggressive pursuit of advanced nuclear technologies, particularly nuclear fusion, highlights a global race to meet future AI energy demands. While the UK is also investing in nuclear and fusion research, China's centralised approach and scale of investment could influence global energy technology development and supply chains, potentially affecting future energy costs and availability for AI infrastructure globally, including in the UK.

Sector impact

Analysis by AI Energy Intelligence UK

UK electricity demand

China's data centres are projected to quadruple their electricity consumption to 774 terawatt hours by 2030, driven by rapid growth in AI workloads. This structural increase in computing-related power demand is a primary accelerator for China's investment in advanced nuclear energy solutions.

UK energy security

China's robust investment in nuclear power, including both conventional and advanced SMR and fusion technologies, is directly aligned with Beijing's national drive for enhanced energy security. This strategy aims to reduce reliance on external energy sources and solidify domestic energy independence to power critical sectors like AI.

Businesses

The Chinese nuclear industry is expected to be the world's most dynamic and significant over the next decade. Private companies in China, often with state links, are attracting significant venture funding for SMR development, while fusion start-ups like NovaFusionX are securing substantial investment, indicating a burgeoning business ecosystem focused on advanced nuclear technologies. This suggests potential for new export industries and technological dominance.

Consumers
Not directly addressed by the source.

Key statistics

58
New conventional nuclear plants being built globally, with more than half in China
774 terawatt hours
Projected electricity consumption of China’s data centres by 2030
Rmb300mn ($44.1mn)
Venture funding raised by Junhe Atomic
Rmb3bn ($440mn)
Cost to build NovaFusionX's first demonstration reactor
Rmb2.4bn ($360mn)
Investment attracted by NovaFusionX

Figures as reported by ft.com. See original source for context.

Quotations

"The big opportunity is this: there’s an electricity supply gap because of AI."

— an executive with Junhe Atomic

"We believe this represents the most promising pathway to achieve fusion at low cost, and to satisfy the fast-growing electricity demand from AI data centres."

— Guo Houyang

"fully confirmed the scientific soundness, feasibility and commercialisation potential of this pathway"

— Guo Houyang

"world’s most dynamic and significant nuclear industry"

— Damien Ma

Long-term implications

China's concentrated investment in nuclear fusion and SMRs suggests a long-term strategy to establish itself as a leader in future energy technologies, addressing both the massive power needs of AI and broader energy security and carbon neutrality goals. This could lead to China dominating another key industry, with potential global implications for technology development, energy supply chains, and international collaboration in nuclear science.

Small modular reactors (SMRs)Nuclear fusionConventional nuclear plantsAI computer chips

Frequently asked questions

What is driving China's increased interest in nuclear power?

The boom in energy-hungry AI data centres and a broader national drive for energy security, technological leadership, and carbon neutrality are accelerating China's research into nuclear power.

What types of nuclear technologies is China pursuing?

China is building new conventional nuclear plants, investing heavily in emerging small modular reactors (SMRs), and pouring research and development efforts into nuclear fusion.

When does NovaFusionX aim to achieve net energy gain?

NovaFusionX hopes to deliver a 'net energy gain' by 2029.

What is the projected electricity consumption of China’s data centres by 2030?

China’s data centres are forecast to quadruple their electricity consumption to 774 terawatt hours by 2030.

Original source

This story summarises reporting from ft.com. Read the original for full context.

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Evidence base

Evidence behind this story

Our reporting sits on top of the UK AI Energy Index and Data Centre Tracker — a sourced, dated record of AI and data-centre electricity demand, data-centre development and grid pressure.