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Sustainable aviation fuel gaining lift worldwide

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An Airbus A380 passenger plane. AIRBUS SE

Sustainable aviation fuel gaining lift worldwide

The move toward sustainable aviation fuel (SAF) derived from cooking oil, household garbage and other materials is gaining momentum in the airline industry, which has been the target of criticism overseas because of the high carbon dioxide emissions associated with flying.

Late last month, aircraft manufacturer Airbus SE flew an A380 jumbo jet for about three hours powered solely by SAF for a test flight in Toulouse in southwestern France, indicating the safety of SAF and signalling a wave of change in the aviation industry.

The term “flight shaming” was popularised by environmental activist Greta Thunberg. In 2019, the Swedish teenager crossed the Atlantic Ocean by yacht when she travelled to the UN headquarters in New York for a climate summit, instead of travelling by plane.

Jet fuel derived from crude oil is responsible for most of the carbon dioxide emissions produced by the airline industry, which has come under increased scrutiny amid a global push for decarbonisation.

The sense of urgency is particularly strong in Europe, where environmental issues attract more attention. European countries have started setting goals for the introduction of SAFs, which currently account for less than one per cent of the total global supply of aviation fuels.

In Norway, it has been mandatory for airlines to use SAF mixed with other fuels since 2020, and Britain wants 75 per cent of aviation fuel to be powered by SAFs by 2050.

A shift has also been seen among Japanese airlines. Last month, All Nippon Airways, Japan Airlines and 14 other companies established an organisation called Act For Sky to promote the use of domestically produced SAFs.

The organisation, whose members include Nissin Foods Holdings Co, Odakyu Electric Railway Co and a manufacturer of fuels derived from cooking oil, is working to secure raw materials and establish distribution networks.

ANA and JAL, competitors in the aviation industry, have already joined hands to promote the use of SAFs. In June, both airlines flew regular flights using fuel mixed with sustainable aviation fuel derived from microalgae and wood chips.

The Japanese government wants 10 per cent of the aviation fuel used by domestic airlines to be SAFs by 2030.

The International Civil Aviation Organisation, a UN agency, aims to adopt this year a target of net-zero carbon dioxide emissions among international airliners by 2050. As a result, efforts by the world’s airlines are likely to accelerate.

“European and North American airlines might cut trips to Japan if planes cannot refuel with SAFs at Japanese airports,” said a senior official of the Japanese Ministry of Land, Infrastructure, Transport and Tourism.

Securing raw materials is one of many challenges that lie ahead.

Euglena Co produces health foods made from a type of algae called euglena, and also manufactures fuel derived from the aquatic organism and used cooking oil.

Last year, Honda Aircraft Co flew a HondaJet private plane using an SAF manufactured by Euglena, which plans to build a mass production site in the future so that it can supply fuel to major airlines.

In urban areas, there are multiple sources of used cooking oil, such as restaurant chains, so procurement is not expected to be difficult.

However, price inflation has been seen due to demand among overseas manufacturers and an industry insider predicts tough competition to secure used cooking oil in Japan in the future.

Keeping costs down will be a challenge, too. SAFs are three to four times the price of conventional aviation fuels. ANA wants companies to shoulder part of the burden in return for certificates to use the fuel.



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