Portal de Periódicos da CAPES

Roaming Service for Electric Vehicle Charging Using Blockchain-Based Digital Identity

2021; Multidisciplinary Digital Publishing Institute; Volume: 14; Issue: 6 Linguagem: Inglês

10.3390/en14061686

1996-1073

João C. Ferreira, Catarina Ferreira da Silva, Jose P. Martins,

Electric Vehicles and Infrastructure

We present a suitable approach to address the electric vehicle charging roaming problem (e-roaming). Blockchain technologies are applied to support the identity management process of users charging their vehicles and to record energy transactions securely. At the same time, off-chain cloud-based storage is used to record the transaction details. A user wallet settled on a mobile application stores user verified credentials; a backend application in the vehicle charging station validates the user credentials to authorize the energy transaction. The current model can be applied to similar contexts where the user may be required to keep several credentials from different providers to authenticate digital transactions.