The United Kingdom has published a first-of-its-kind Advanced Nuclear Framework designed to accelerate the deployment of innovative nuclear technologies and to expand opportunities for private-sector investment, including from U.S. firms.

Announced on February 4, the framework establishes a transparent and structured process for companies to bring advanced, small and micro modular reactors to market and positions Britain as a strategic destination for cutting-edge nuclear development.

Under the policy, developers can submit proposals to join an official Advanced Nuclear Pipeline beginning in March, with government and Great British Energy-Nuclear experts assessing readiness based on technology, finance, siting and supply chain capacity.

Projects that meet these criteria can receive an in-principle endorsement, unlocking easier access to private capital and enabling discussions on risk protection or revenue support where necessary.

The enabling policy environment aims to crowd-in investment at lower cost and with greater predictability for developers entering the U.K. market.

New nuclear technologies offer quicker modular fabrication, smaller capital requirements and applications that extend beyond grid power — such as industrial heat, hydrogen production and clean electricity for data centres, dovetailing with Britain’s goals for energy security and emissions reduction.

The Advanced Nuclear Framework has already catalysed commercial engagement with U.S. companies.

U.S.-based X-Energy is working with Centrica on plans for multiple advanced modular reactors at Hartlepool, potentially creating thousands of jobs and delivering clean power to homes and industry.

Holtec, an American nuclear technology firm, is partnered with EDF on a small modular reactor project at Cottam in Nottinghamshire, reinforcing transatlantic collaboration.

Long-standing cooperation under the Atlantic Partnership for Advanced Nuclear Energy — agreed between the U.K. and United States during high-level diplomatic engagement in 2025 — has laid the groundwork for regulatory alignment, commercial cooperation and streamlined licensing pathways that further enhance opportunities for U.S. firms to participate in the U.K.’s nuclear expansion.

Officials emphasise that the framework builds on the biggest government investment in nuclear power in a generation and broadens the attraction for private capital.

It comes alongside reforms to planning, regulation and fuel-cycle clarity that reduce barriers to entry.

Public and private stakeholders, including national laboratories and research bodies, are positioned to support developers in moving technologies from concept to deployment.

With major U.S. and international developers seeking credible routes to expand advanced nuclear globally, the U.K.’s policy signals confidence in its market’s openness and competitiveness and underscores a shared commitment with international partners to harness nuclear innovation for clean energy and industrial growth.