Blockchain-based implementation of Tradable Green Certificates.

Blockchain networks, given that they are not based on power-hungry proof-of-work methods, can be used in smart grid applications, in particular in the tradable green certificates use case. Thanks to the Blockchain and the smart contracts implemented, certificates can be tracked and exchanged between entities without the intervention of third parties, as well as keeping an immutable and reliable record of these certificates. This work proposes a hardware implementation of a green certificate trading system based on Blockchain, in which prosumers use hardware secure elements to implement the cryptographic tools used to interact with the Blockchain. Smart contracts help to automate these processes, deleting intermediaries, saving costs and avoiding bureaucracy.