
- Clean Energy
- Green Tech
- Nuclear Energy
US–UK $100B Nuclear Partnership Powers Britain’s Energy Future
5 minute read

Small modular reactors gain momentum as US-UK nuclear partnership aims to power 1.5 million British homes through advanced technology deployment
Key Takeaways
- $100 billion US-UK nuclear partnership signed during Trump’s state visit, focusing on small modular reactors to enhance energy security and reduce fossil fuel dependence
- 12 advanced modular reactors planned for Hartlepool through X-Energy and Centrica collaboration, potentially powering 1.5 million homes and creating 2,500 jobs
- Regulatory approval timeline cut in half from four years to two years through streamlined licensing regime and mutual recognition of safety assessments
Introduction
Britain enters what Prime Minister Keir Starmer calls a “golden age of nuclear” with the signing of a transformative $100 billion US-UK partnership. The agreement establishes a comprehensive framework for deploying small modular reactors across Britain, marking the country’s largest nuclear expansion in fifty years.
The partnership addresses critical energy security concerns while advancing the UK’s clean energy objectives. Five major deals encompass advanced reactor technologies, fuel supply agreements, and regulatory reforms designed to accelerate deployment timelines.
Key Developments
The centerpiece project involves US company X-Energy partnering with Centrica to construct up to 12 advanced modular reactors in Hartlepool. This initiative promises to deliver power for 1.5 million homes while generating a £40 billion economic boost, including £12 billion specifically for the northeast region.
Additional agreements include an £11 billion deal between US-based Holtec, France’s EDF, and UK’s Tritax to develop SMRs powering data centers at the former Cottam coal-fired power station in Nottinghamshire. Last Energy secures backing for a microreactor supporting DP World’s London Gateway port expansion through £80 million in private investment.
TerraPower and KBR plan to deploy 345MW Natrium advanced reactors across the UK, creating 1,600 construction jobs and 250 permanent positions. The Guardian reports that Urenco signed a £4 million agreement to supply nuclear fuels to US markets while establishing an Advanced Fuels Facility domestically.

Market Impact
The nuclear sector experiences renewed investor confidence following the partnership announcement. Private investors recently committed £38 billion to construct Sizewell C in Suffolk, notably excluding Chinese financing amid geopolitical considerations.
Rolls-Royce advances its nuclear strategy with government approval to build three SMRs this year. The company expands internationally, securing contracts with the Czech Republic and entering the US market through enhanced bilateral cooperation.
Energy companies position themselves strategically within the expanding nuclear landscape. Centrica’s involvement signals traditional utility companies’ commitment to next-generation nuclear technologies as part of their clean energy transition strategies.
Strategic Insights
The partnership establishes the Atlantic Partnership for Advanced Nuclear Energy, creating mutual recognition frameworks for safety assessments between both nations. This regulatory alignment reduces bureaucratic barriers while maintaining rigorous safety standards.
Nuclear-powered data centers emerge as a significant growth sector, addressing the intersection between rising digital infrastructure demands and clean energy requirements. The Cottam project demonstrates how former fossil fuel sites can transition to advanced nuclear applications.
The agreement positions both countries as global leaders in advanced nuclear technology export markets. Success in domestic deployment creates competitive advantages for international expansion, particularly in emerging markets seeking clean energy solutions.
Expert Opinions and Data
Energy Secretary Chris Wright emphasizes the strategic importance of the partnership, stating the initiative represents “a true nuclear renaissance – harnessing the power of commercial nuclear to meet rising energy demand and fuel the AI revolution.” Wright highlights enhanced global energy security and strengthened nuclear supply chains across the Atlantic.
Ed Miliband underscores the urgent need to reduce fossil fuel dependence through innovative nuclear solutions. The Energy Minister positions nuclear expansion as central to tackling energy bills while achieving climate objectives through the UK’s most ambitious nuclear programme in decades.
However, environmental groups express skepticism regarding nuclear’s role in climate solutions. Greenpeace advocates prioritizing offshore wind and battery technology advancement over nuclear development, citing persistent cost and waste management challenges including the £136 billion Sellafield cleanup and £54 billion geological disposal facility costs.
Conclusion
The US-UK nuclear partnership represents a fundamental shift in both nations’ energy strategies, combining advanced reactor technologies with streamlined regulatory processes. The agreement creates pathways for accelerated deployment while addressing long-standing barriers to nuclear expansion.
Success depends on sustained political support, private sector engagement, and effective resolution of technical challenges including skilled labor development and waste management systems. The partnership establishes clear frameworks for achieving energy security objectives while positioning both countries at the forefront of global nuclear technology leadership.