Leading hydrogen jet engine developer Rolls-Royce says H2-powered planes won't happen for 20 years

CEO warns that SAFs will dominate decarbonisation efforts, as it ditches electric plane division

Rolls-Royce AE2100 Hydrogen Demonstrator engine preparing for test at RAF Boscombe Down . Easyjet Rolls-Royce hydrogen jet engine.
Rolls-Royce AE2100 Hydrogen Demonstrator engine preparing for test at RAF Boscombe Down . Easyjet Rolls-Royce hydrogen jet engine.Photo: EasyJet/Rolls-Royce
Hydrogen is unlikely to fuel decarbonised flights for another two decades, the CEO of British engine-maker Rolls-Royce has said, despite pioneering a research programme to develop the world’s first H2-fuelled jet engine.

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“I don’t believe in the next 15, 20 years hydrogen will play a role,” Tufan Erginbilgic said on Tuesday, according to Bloomberg.
French plane-maker Airbus is aiming to get its hydrogen-powered plane designs in the air within 12 years, by 2035.

Erginbilgic’s comments come as the company announced plans to ditch its electric flight division, which aimed to develop technology for small urban and regional electrical planes capable of vertical take-off, or with very short runway requirements.

The division will be better served by another company, as Rolls-Royce is no longer prepared to allocate resources to it, the CEO said.

In fact, Erginbilgic, who is behind a major overhaul at Rolls-Royce as part of an effort to turn the struggling company around, is doubling down on the company’s core business in civil aviation — combustion engines.

Drop-in substitutes for aviation-grade kerosene such as sustainable aviation fuels (SAFs) will in fact dominate decarbonisation in the sector for the next 20 years, he said, adding that they would be the sole pathway for decarbonising large aircraft.

However, there may well be a role for hydrogen in SAF production, as some producers use extra H2 in the Fischer-Tropsch method of production to increase yield.

And e-fuels made using renewable hydrogen and sustainable sources of carbon have also been touted as possible aviation fuel drop-ins.

Jet ambitions

Rolls-Royce continues to work on developing its hydrogen-fuelled jet engine as part of its research project with budget airline Easyjet, which this autumn revealed test results showing that 100% hydrogen-fuelled take off is technically possible.

And the company is also currently developing a new ultra-efficient type of engine, called the Ultrafan, which can be fitted to both wide- and narrow-bodied aircraft.

The Ultrafan can reduce emissions through efficiency — and the CEO yesterday said he aimed to bring the new engine to technical completion within four years.

Earlier this year, a report from Bain & Co estimated that fuel efficiency measures would account for 43% of all emissions reduction efforts by 2050, with hydrogen and battery electric providing just 5%.
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Published 29 November 2023, 13:13Updated 30 November 2023, 13:58