Equilibrion & Rolls-Royce SMR to Assess Nuclear-Powered SAF Production

Equilibrion and Rolls-Royce SMR have signed a Memorandum of Understanding (MoU) to assess the production of Sustainable Aviation Fuel (SAF) using nuclear energy. The collaboration will explore the technical and economic viability of using a Rolls-Royce Small Modular Reactor (SMR) power station, which could potentially produce over 160 million litres of SAF annually per unit.

This partnership addresses a critical challenge in the aviation industry's path to decarbonization: the scalable production of low-carbon fuels. Aviation currently accounts for approximately 2-2.5% of global carbon dioxide emissions, and SAF is widely recognized as the most viable path to significantly reduce this footprint. By leveraging the consistent, high-capacity energy output of an SMR, the project aims to create a reliable supply chain for synthetic fuels independent of weather-dependent renewable sources.

A New Pathway for SAF Production

The collaboration will focus on the Power-to-Liquids (PtL) process, a method for creating what is known as electro-Sustainable Aviation Fuel (e-SAF). This process uses clean electricity to produce green hydrogen through electrolysis. The hydrogen is then combined with captured carbon dioxide to synthesize liquid hydrocarbon fuel. According to organizations including IATA and the World Economic Forum, SAF produced through such pathways can reduce lifecycle CO2 emissions by up to 80% compared to conventional jet fuel.

The primary advantage of using nuclear power for this process is the delivery of continuous, low-carbon energy. A single Rolls-Royce SMR power station has the capacity to generate 470 MWe of energy, which Rolls-Royce SMR states is equivalent to the output of more than 150 onshore wind turbines and can power approximately one million homes. This stable energy supply is crucial for the industrial-scale synthesis of e-SAF, which requires a constant and significant power input to be economically feasible.

"Our collaboration with Rolls-Royce SMR brings together the UK's leading nuclear technology with a cutting-edge solution for producing SAF," said Caroline Longman, Director at Equilibrion. "Nuclear‑derived fuel production offers the reliability, scalability and low carbon intensity needed to deliver that future."

The Role of Small Modular Reactors

Small Modular Reactors represent a new approach to nuclear energy generation. The International Atomic Energy Agency (IAEA) defines SMRs as reactors with a power capacity of up to 300 MWe, although the Rolls-Royce design exceeds this at 470 MWe. Unlike large, bespoke nuclear plants, SMRs are designed for modular construction, with approximately 90% of the components intended for factory fabrication. This approach aims to streamline deployment, reduce construction timelines, and lower costs.

The Rolls-Royce SMR is based on proven Pressurized Water Reactor (PWR) technology and is designed for a service life of at least 60 years. This longevity ensures a long-term energy source for industrial applications like SAF production.

Alan Woods, Director of Strategy and Business Development for Rolls-Royce SMR, commented on the partnership, stating, “Our SMR technology is designed to provide clean, affordable and dependable low‑carbon energy, exactly the qualities required to unlock large‑scale Sustainable Aviation Fuel production. This is a hugely exciting opportunity for UK engineering and innovation to deliver a home-grown solution to a global challenge.”

Industry Implications and Future Outlook

The aviation industry is under increasing pressure to decarbonize, with many stakeholders targeting net-zero carbon emissions by 2050. Governments are implementing mandates to accelerate this transition; for example, the UK government has a target for at least 10% of aircraft fuel to be from sustainable sources by 2030. However, current SAF production is limited and often relies on biomass feedstocks, which face their own sustainability and scalability challenges.

The e-SAF pathway, while promising, has been hindered by the high cost and intermittent nature of renewable electricity. The Equilibrion and Rolls-Royce SMR collaboration directly confronts this obstacle by proposing a dedicated, high-density, low-carbon power source. While SAF is currently required to be blended with conventional jet fuel at levels up to 50%, a scalable production method like this could help drive down costs and support the industry's long-term goal of operating on 100% SAF.

The initial MoU will lead to a detailed technical and economic assessment. The success of this study could pave the way for the development of dedicated nuclear-powered SAF facilities. According to Equilibrion, each facility could potentially generate around 10,000 skilled local jobs over its lifetime, providing significant economic benefits alongside environmental ones.

Why This Matters

This agreement marks a pivotal step in connecting advanced nuclear technology directly with the challenge of aviation decarbonization. By proposing Small Modular Reactors as a dedicated power source for Power-to-Liquids SAF production, the partnership could create a scalable, non-biomass pathway for low-carbon jet fuel. If proven viable, this model could address the intermittency and cost issues associated with other renewable energy sources, potentially accelerating the aviation industry's transition away from fossil fuels.

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