Aviation sustainability developments from around the world

Globe zoomed in to Eurasia

GE Aviation and Safran launch advanced technology demonstration programme for sustainable engines

In June, GE Aviation and Safran launched a technology development programme targeting more than 20 percent lower fuel consumption and CO2 emissions compared to today's engines. The CFM RISE (Revolutionary Innovation for Sustainable Engines) programme will demonstrate and mature a range of new, disruptive technologies for future engines that could enter service by the mid-2030s. The programme goals also include ensuring 100 percent compatibility with alternative energy sources such as Sustainable Aviation Fuels and hydrogen. The companies have signed an agreement extending the CFM International 50/50 partnership to the year 2050, declaring their intent to lead the way for more sustainable aviation in line with the industry's commitment to halve CO2 emissions by 2050.

United announces agreement to buy aircraft from Boom Supersonic running 100% on SAF

In June, United Airlines announced a commercial agreement with Denver-based aerospace company Boom Supersonic to add its aircraft to its global fleet. Under the terms of the agreement, United will purchase 15 of Boom's 'Overture' airliners, once Overture meets United's demanding safety, operating and sustainability requirements, with an option for an additional 35 aircraft. Overture is expected to be the first large commercial aircraft to be net-zero carbon from day one, optimised to run on 100% sustainable aviation fuel (SAF). It is slated to roll out in 2025, fly in 2026 and carry passengers by 2029.

United Airlines

Rolls-Royce to invest €93m by 2030 in energy storage for aviation

Energy storage systems (ESS) are among the key technologies which will contribute to decarbonise aviation through all-electric or hybrid-electric power and propulsion systems. Rolls-Royce announced their intention to invest £80m (€93m) in ESS technology by 2030, to strengthen their position on the aviation market. These batteries will equip eVTOLs (electric vertical takeoff and landing) in the Urban Air Mobility (UAM) market; and fixed-wing aircraft, with up to 19 seats, in the commuter market. Rolls-Royce claims that ESS will enable aircraft to undertake zero emissions flights of over 100 miles on a single charge.

Rolls Royce

NASA-DLR study finds sustainable aviation fuels reduce non-CO2 emissions

Contrail cloudiness - which accounts for a major share of aviation’s climate impact - remains a field of research to resolve the complex links between jet fuel composition, contrail microphysics at work, and the resulting climate impact. Yet a joint DLR-NASA experiment probing the exhaust and contrail of an Airbus A320 has improved our understanding of the phenomenon and opened perspectives for mitigating its effects. The testing campaign provided experimental evidence that burning low aromatic sustainable aviation fuel (SAF) can result in a 50 to 70% reduction in soot and ice number concentrations. The study concluded that “meaningful reductions in aviation’s climate impact could therefore be obtained from the widespread adoption of low aromatic fuels, and from regulations to lower the maximum aromatic fuel content”.

Cologne Bonn Airport makes Neste’s Sustainable Aviation Fuel available for airlines to reduce greenhouse gas emissions

Neste, a leading provider of sustainable aviation fuel (SAF), has set up a supply of its so-called MY Sustainable Aviation Fuel (SAF)™ at Cologne Bonn Airport. By doing so, Neste is helping to meet increasing levels of demand from air freight and corporate customers at Cologne Bonn Airport - a major cargo hub in Germany. AFS, the leading provider for aviation fueling services in Germany, supports Neste to serve this market. As a forerunner in sustainability, Cologne Bonn Airport is one of the first German airports where Neste MY Sustainable Aviation Fuel (SAF) is now available for all airlines.


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