Bristol Airport Study Confirms Viability of Nuclear-Derived SAF

A feasibility study conducted by Bristol Airport and energy firm Equilibrion has determined that Small Modular Nuclear Reactors (SMRs) are a viable option for producing Sustainable Aviation Fuel (SAF) and hydrogen in the South West of the UK. The findings represent a significant step toward establishing a local, low-carbon fuel supply chain to meet the aviation industry's growing decarbonisation demands.

The initiative, known as the Eq.flight project, addresses the critical challenge of sourcing sufficient SAF to comply with upcoming government regulations. According to the UK's Department for Transport (DfT), the national SAF Mandate requires fuel suppliers to ensure 2% of total jet fuel is SAF in 2025, a figure that rises sharply to 10% in 2030 and 22% in 2040. The study provides a potential pathway for meeting these targets through advanced nuclear technology.

Technical and Environmental Impact

The study focused on the Power-to-Liquid (PtL) process, which uses low-carbon electricity to produce synthetic liquid fuels. An SMR, a type of nuclear fission reactor with a capacity of up to 300 MW(e), would provide a constant and reliable source of energy to electrolyze water into hydrogen and capture carbon dioxide. These components are then synthesized to create e-SAF. Equilibrion data indicates that a single SMR facility could produce at least 92,000 tonnes of SAF annually.

For Bristol Airport, the project's potential is substantial. According to a press release from the airport, the successful implementation of the Eq.flight project could reduce emissions from its flights by 29% as early as 2035. This aligns with the airport's broader environmental goals, which include achieving net-zero operations for its own Scope 1 and 2 emissions by 2030. The project also supports the production of hydrogen for use in ground support equipment, building on the airport's previous 'Project Acorn' trial of hydrogen-powered vehicles.

Funding for the feasibility study was provided through Bristol Airport's Airport Carbon Transition (ACT) Programme, a fund designed to accelerate decarbonisation projects. The Eq.flight project also received an award from the DfT's Advanced Fuels Fund, underscoring its strategic importance to national policy.

Regulatory and Industry Context

The project's focus on nuclear-derived SAF is particularly relevant due to a sub-target within the UK SAF Mandate known as the Power-to-Liquid Obligation. This specific requirement is designed to encourage the development of synthetic fuels made from low-carbon electricity, making the SMR-to-SAF pathway a key strategic option for fuel producers. Unlike intermittent renewable sources like wind and solar, SMRs can provide the consistent baseload power required for efficient and large-scale PtL fuel production.

Dr Phil Rogers, Director at Equilibrion, stated, “Eq.flight provides a unique opportunity to produce low-carbon fuels close to where they are used, creating jobs, investment, and local value. Our mission to decarbonise aviation using nuclear energy is advancing rapidly, and completion of this project is a major milestone.”

The study reflects a wider industry trend towards creating regional SAF production hubs. By locating production in the South West, the project aims to minimize transportation emissions associated with fuel delivery and leverage the region's existing nuclear industry expertise.

Hannah Pollard, Head of Sustainability for Bristol Airport, commented on the findings: “Sustainable Aviation Fuel will play a critical role in decarbonising aviation globally, but we need to ensure that there is a reliable, affordable supply. Equilibrion's ground-breaking report shows the huge potential that nuclear-derived SAF offers. With our region's nuclear pedigree and available sites, the South West is well-positioned to host SMRs and lead the development of this exciting technology.”

What Comes Next

With the feasibility study complete, the next phase will likely involve securing further investment, identifying specific sites for SMR deployment, and engaging in detailed engineering and design work. The project must also navigate complex regulatory and planning processes before construction can begin. The timeline for the first SMR-powered SAF facility becoming operational remains subject to these future developments.

Why This Matters

This study establishes a credible, technology-driven roadmap for producing SAF at scale without relying on intermittent renewables. For the aviation industry, it signals that nuclear energy is an increasingly serious contender in the race to decarbonise. The project positions the UK's South West region as a potential leader in a new, high-value industry, creating a blueprint for other airports and regions to follow.

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