SAF and bio-marine fuel: what are the conditions for coexistence?
The 2050 carbon-neutrality goal is an enormous challenge for both aviation and shipping. With full commercialisation of e-fuel still some time away, both sectors are eyeing biofuels as a realistic interim fuel.
The Core Issue: Resource Competition
Both industries depend on the same critical resource: biomass produced through agriculture and forestry — and supply is constrained:
- Environmental conservation constraints (forest protection, biodiversity)
- Food security priorities
- Limited arable land
As a result, aviation and shipping will face supply competition for the same finite resource.
Aviation vs. Shipping: Where Does the Balance Tip?
| Aspect | Aviation (SAF) | Shipping (bio-marine fuel) |
|---|---|---|
| Long-term alternatives | Electric, hydrogen | Ammonia, e-fuel |
| Transition cost | Extremely high | High |
| Biofuel reliance | High | Moderate |
Conditions for Coexistence
If biofuel demand from both industries cannot be fully met, we need policy criteria for resource allocation:
- Strengthen sustainability certification
- Set sectoral usage priorities
- Invest in expanded biomass production
- Align with the commercialisation timeline of alternative fuels
Ultimately, biofuels must be designed as a "time-bounded interim strategy," while accelerating each sector's transition to long-term alternatives is the real solution.