2024-03-24-世界经济论坛-扩大可持续航空燃料供应_克服欧洲_美国和中东的障碍（英）_33页_4mb

Summary of "Scaling Up Sustainable Aviation Fuel Supply: Overcoming Barriers in Europe, the US and the Middle East"

Core Content

This report discusses the challenges and opportunities for scaling sustainable aviation fuel (SAF) globally, with a focus on Europe, the US, and the Middle East. It highlights the importance of SAF in aviation decarbonization and outlines key strategies for overcoming barriers in production, technology, and policy.

Main Challenges

• Low Production: Global SAF production remains insufficient, with current projects covering only 30–40% of the projected demand for 2030.
• High Costs: SAF is currently 2–5 times more expensive than fossil jet fuel.
• Technology Risks: Uncertainty in technology development and deployment poses a challenge for producers.
• Market Transparency: Lack of transparency in SAF pricing and logistics creates friction in scaling.
• Regional Constraints: Availability of feedstocks, energy costs, and policy landscapes vary significantly across regions.

Key Technologies for SAF Production

Four main technologies are identified as the most promising for large-scale SAF deployment:

1. Hydro-processed esters and fatty acids (HEFA)
   • Uses waste and residue oils (e.g., used cooking oil).
   • High production yield but limited by feedstock costs and sustainability concerns.
2. Biomass gasification (G-FT)
   • Produces syngas from biomass, which is then converted to SAF via Fischer-Tropsch reactors.
   • Two subtypes: biomass-to-liquid (BtL) and waste-to-liquid (WtL).
   • Decentralized production may be more cost-effective.
3. Alcohol-to-jet (AtJ)
   • Converts alcohols (e.g., ethanol, methanol) into SAF.
   • High specific yield and potential for rapid scaling.
   • Local processing of biomass into alcohols enables centralized production.
4. Power-to-liquid (PtL)
   • Uses hydrogen and CO₂ from engineered sources.
   • Not limited by biomass availability, making it suitable for long-term use.
   • High costs due to reliance on renewable energy and carbon capture.

Key Actions for Scaling SAF

1. Collaboration

• Regional SAF Supply Strategy: Airlines, airports, SAF producers, governments, OEMs, and service providers must collaborate to develop a strategic approach for SAF supply.
• Transparent Support Mechanisms: Regulators and industry groups can help by providing transparent and accessible support options.
• Cross-sector Partnerships: Airports can act as matchmakers, facilitating negotiations and partnerships among stakeholders.

2. Finance

• Long-term Offtake Agreements: Airlines and SAF producers need to commit to long-term contracts to reduce financial risk.
• Government Incentives: Financial support through tax credits, revenue reassurance, and subsidies is essential.
• Green Investment: The finance sector must increase investments in SAF and support robust business cases.

3. Policy

• Mandates and Incentives: Policies like ReFuelEU in Europe and the Inflation Reduction Act in the US are crucial for driving SAF adoption.
• Emissions Trading Systems (ETS): These systems help price carbon emissions and support the transition to SAF.
• Regulatory Clarity: Clear and supportive regulations are necessary to enable market growth and investment.

Favourable Regions for SAF Production

• Global Production Hubs: 20 key regions have been identified, including South America, southern Africa, Australia, and the Middle East, due to their access to cheap renewable energy and feedstock availability.
• Export Corridors: These regions are likely to become major exporters of green SAF, supporting global demand.
• Local Production: Europe and Japan should prioritize local SAF production where it makes economic and energy security sense, while sourcing the rest from overseas.

Conclusion

Scaling SAF globally requires strategic partnerships, targeted technology deployment, and supportive regulations and financing mechanisms. The report emphasizes that while each region has its unique challenges, collaboration, transparency, and policy alignment are essential to achieve the goal of 10% SAF in the global fuel mix by 2030 and full sector decarbonization by 2050.