As industries worldwide pivot towards decarbonization, there has been increased focus on aviation—a sector known for its substantial carbon footprint. According to the International Energy Agency, aviation made up 2% of global energy-related emissions in 2022, ranking as the fastest growing transportation sector. Could Sustainable Aviation Fuel (SAF) be the solution for an industry under harsh scrutiny for its environmental impact?
What is SAF?
Among the various strategies under consideration, Sustainable Aviation Fuel (SAF) stands out for its potential to significantly lower emissions without sacrificing the performance or safety standards critical to aviation. Unlike conventional jet fuels derived from fossil resources, SAF is produced from sustainable sources such as waste oils, agricultural residues, and even carbon captured from the air. Thanks to a wide range of source materials, SAF is highly scalable. This could enable widespread adoption, with the potential to meet a significant portion of the global aviation fuel demand sustainably.
An 80% Reduction in Lifecycle Carbon Emissions
The U.S. Department of Energy notes that SAF can cut lifecycle carbon emissions by up to 80% compared to conventional jet fuel, depending on how it’s produced. Some newer pathways also suggest that net negative emissions are possible with SAF. And since SAF takes advantage of organic waste streams, SAF production also prevents the greenhouse gas methane from entering the atmosphere during decomposition.
Milestones in SAF Adoption
Lately, the news has been buzzing with SAF breakthroughs. Here are a few of note:
- In November 2023, the world saw the very first transatlantic flight powered purely by SAF. Completed by SAF-producer World Energy and Gulfstream Aerospace, the flight traveled from Georgia to the UK in just under 7 hours. Data collected during the flight will help demonstrate the fuel’s viability and performance capabilities.
- World Energy also recently announced an agreement with Microsoft to purchase sustainable aviation fuel certificates for their corporate travel and supply chain. Over 10 years, Microsoft will be able to verify decarbonization goals with SAF via a Book & Claim tracking framework.
- Vietjet Air, a Vietnamese low-cost carrier, has partnered with Dubai-based start-up SAF One to develop SAF for the airline. The two signed a MoU during COP28 in Dubai, stating their plans to develop and deploy SAF throughout Vietnam. This aligns with a growing focus on SAF in the Asia-Pacific region overall.
Recommendations for Stakeholders
How can you help promote SAF adoption?
- For Industry Leaders: Accelerate the integration of SAF by investing in production facilities and forming partnerships with fuel producers and governments.
- For Policymakers: Develop and implement policies that incentivize SAF production and adoption, including tax credits and subsidies.
- For Researchers: Focus on innovating in feedstock diversity and production efficiency to decrease costs and increase SAF’s competitiveness.
- For the Public: Support airlines and companies that prioritize sustainability and SAF, driving demand for greener aviation options.
Navigating Towards a Sustainable Future
Sustainability has certainly taken flight, with the aerospace industry leading one of the most challenging aspects of global decarbonization efforts. In embracing SAF, the aerospace sector can promote a sustainable future, reducing its carbon footprint while ensuring the continued growth and viability of global aviation. By continuing to invest in SAF technology, collaborate across sectors, and implement supportive policies, a greener, cleaner sky is within reach.
