A single Rolls-Royce SMR powering Equilibrion’s Eq.flight power-to-liquids system could produce over 160 million litres of sustainable aviation fuel per year — equivalent to approximately one-third of the UK’s entire 2040 power-to-liquids target per reactor. The two companies have signed a memorandum of understanding to complete a technical and economic assessment of the combined system, with Equilibrion targeting a world-leading UK demonstration of Eq.flight by 2030.
The 160-million-litre figure is the most concrete scale number yet attached to nuclear-powered eSAF production. The UK has committed to 22% SAF blending by 2040, with a sub-component of that target allocated to electrofuels — a category that currently has no commercial-scale production anywhere in the world. Equilibrion’s calculation suggests a relatively small number of SMR deployments could meaningfully close that gap without requiring fossil fuel infrastructure.
“Aviation will only meet its climate commitments if SAF becomes available in large, dependable volumes. Nuclear-derived fuel production offers the reliability, scalability and low carbon intensity needed to deliver that future.”
“Aviation will only meet its climate commitments if SAF becomes available in large, dependable volumes,” said Caroline Longman, director at Equilibrion. “Nuclear-derived fuel production offers the reliability, scalability and low carbon intensity needed to deliver that future. Delivering nuclear-enabled SAF also creates long-term, high-quality employment — each Eq.flight facility has the potential to generate around 10,000 skilled local jobs over its lifetime.”
Alan Woods, director of strategy and business development for Rolls-Royce SMR, said: “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. The technical and economic assessment completed with Equilibrion will enable them to demonstrate how nuclear can power one of the most ambitious decarbonisation challenges in aviation.”
The Rolls-Royce SMR is a 470 MWe pressurised water reactor design with a minimum 60-year operational life. Ninety percent of the unit is built in factory conditions, limiting on-site activity to assembly of pre-fabricated modules — a construction approach designed to reduce project risk and compress build schedules. The combination of consistent thermal output and factory-build economics is the feature Equilibrion’s Eq.flight system is specifically designed to exploit: PtL SAF requires constant, high-volume energy input that intermittent renewable sources cannot reliably provide.
A separate feasibility study conducted by Bristol Airport and Equilibrion, supported by Q8Aviation and Exolum, concluded that SMRs sited in southwest England could supply SAF and hydrogen to support the airport’s full flight operations, with a projected 29% reduction in emissions from Bristol Airport flights by 2035. Equilibrion’s Eq.flight project is funded in part by the UK Department for Transport’s Advanced Fuels Fund.
With SAF currently meeting less than 1% of global aviation demand, the 160-million-litre-per-reactor figure represents a meaningful benchmark for what a nuclear-powered supply pathway could contribute at national scale. Whether the 2030 demonstration proceeds on schedule will depend on planning approvals, SMR deployment timelines, and continued government backing — but for the UK’s PtL gap specifically, the numbers are now on the table.
Source: World Nuclear News
