Brazilian state-owned energy firm Petrobras is testing the Cardano blockchain to track environmental claims tied to sustainable aviation fuel and renewable diesel. The projects, run with the Cardano Foundation and PUC-Rio, aim to make emissions-benefit claims easier to verify and harder to double-count.
Petrobras is testing Cardano on two research projects that track data for low-carbon fuels, one covering sustainable aviation fuel and the other its renewable-content Diesel R product. The state-controlled oil company is working with the Cardano Foundation and researchers at PUC-Rio on both efforts.
Book-and-claim system targets double counting
The aviation project uses a book-and-claim mechanism, which separates the environmental benefit of sustainable aviation fuel, known as SAF, from the physical fuel itself. This setup lets airlines claim verified environmental benefits even when the SAF is used outside their own operations, while Cardano's ledger records each benefit's origin, recipient and claim time.
Passengers can use this setup too: the system can generate certificates for individual airline passengers, who enter their departure and destination airports and receive a digital record tied to an allocation of sustainable aviation fuel. That process is meant to keep the same environmental benefit from being counted twice.
Diesel R tracking feeds emissions reporting
A separate project applies the same approach to Diesel R, a blend of renewable feedstocks such as vegetable oils and animal fats with conventional diesel. Cardano creates digital checkpoints as the fuel moves through production, transportation and use, building a continuous record of its lifecycle.
Companies could draw on those records when compiling Scope 3 greenhouse-gas emissions reports, which may need to involve data from suppliers, delivery companies and other outside firms. According to CoinGape: "The energy transition will be built as much on trust as on new fuels," said Rafael Fraga, who leads Cardano Foundation business development across Latin America.
Both initiatives remain in the research phase, with no date set for a commercial launch.
Sources: CoinGape, Bitcoin.com
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