Petrobras Taps Cardano for Blockchain-Based Renewable Fuel Tracking

Petrobras, Brazil's state-controlled oil company, has developed two blockchain-based applications using Cardano to track environmental claims tied to renewable fuels. The projects aim to prevent 'double counting' of sustainability benefits and improve traceability across fuel production and usage.

The first application tokenizes environmental attributes associated with sustainable aviation fuel (SAF) and ties those attributes to the Book-and-Claim model commonly used in the sector. This approach decouples environmental benefits from the physical fuel, allowing buyers to meet sustainability requirements without relying on one-to-one physical sourcing.

The second application focuses on renewable diesel, creating digital 'checkpoints' intended to support reporting of indirect emissions along a company's value chain. The resulting data could be used to support Scope 3-style disclosures.