Blockchain integrated into EV charging infrastructure

August 16, 2019 //By Nick Flaherty
Researchers in Canada have integrated blockchain into energy systems to expand charging infrastructure for electric vehicles.
Researchers in Canada have integrated blockchain technology into energy systems to expand charging infrastructure for electric vehicles.

The team at the University of Waterloo developed a scalable blockchain-oriented charging system as they found that there is a lack of trust among charging service providers, property owners and owners of electric vehicles (EVs). The secure technology is already being testing out for the distributed power grid and to track the use of cobalt in EV batteries.

With an open blockchain platform, all parties will have access to the data and can see if it has been tampered with. Using a blockchain-oriented charging system allows car owners to see if they are being overcharged while property owners will know if they are being underpaid.

"Energy services are increasingly being provided by entities that do not have well-established trust relationships with their customers and partners," said Christian Gorenflo in Waterloo's David R. Cheriton School of Computer Science. "In this context, blockchains are a promising approach for replacing a central trusted party, for example, making it possible to implement direct peer-to-peer energy trading."

The team worked with a service provider and property owners to install EV supply equipment that is used by car owners for a fee. The revenue stream from these charging stations is then shared between the charging service provider and each property owner. The EV supply equipment is operated by the charging service provider, so the property owners must trust the provider to compensate them fairly for the electricity used.

From the case study, the researchers were able to identify three steps necessary for the incorporation of blockchain technology into an energy system. The first is to identify the involved parties and their trust relations. If the level of trust in a relation is insufficient to achieve the application's goal or if it restricts an action necessary to reach that goal, this should be recorded as a trust issue.

Then they designed a minimal blockchain system, including smart contracts, that resolves the trust issues identified in the first step. If


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