Petrobras Tests Cardano to Track Sustainable Aviation Fuel Benefits
Petrobras pilots blockchain for green fuel tracking
Petrobras, Brazil's state-controlled energy company, is testing the Cardano blockchain to track the environmental benefits of sustainable aviation fuel. The goal is to stop the same benefit from being claimed twice.
The Cardano Foundation announced on September 30 that a research and development partnership has produced applications for this fuel and for Diesel R, Petrobras' renewable fuel brand.
How the token system works
- The project creates standard CS-SAF tokens on the Cardano network to represent fuel benefits.
- These tokens can be created, moved between parties, checked, and retired.
- Retiring a token ensures the environmental claim cannot be used again.
- A digital record links each token back to the original fuel certificate.
This method solves a common issue where the person buying the fuel is different from the person claiming its green benefits. It allows airlines or passengers to receive credit even if the fuel was made or burned elsewhere.
Traveler certificates and standards
According to the foundation, travelers can input their flight details to calculate a fuel allocation. They then receive a certificate showing their route, distance, and the specific amount of green fuel allocated to them. This claim stays linked to the original source.
The tokens include data that matches CORSIA, a global scheme for offsetting carbon emissions in international aviation.
Diesel R supply chain model
A separate effort called Diesel R proposes using checkpoints throughout the production and transport of fuel. This model aims to create a continuous record of the fuel's life cycle. Such records could help companies report on indirect emissions across their entire supply chain.
Current limits of the pilot
While the technology shows how to record and retire environmental benefits, commercial use has not been measured yet. The disclosures from the Cardano Foundation do not provide any numbers on transaction volumes or revenue.
Guidance on reporting claims
Guidance from the Roundtable on Sustainable Biomaterials notes that this "Book-and-Claim" model does not change the physical fuel an airline uses. Airlines are advised to report supported emission reductions separately from their own operational emissions to avoid confusion.
Sources
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