Ethereum Blockchain Network-based Electrical Vehicle Charging Platform with Multi-Criteria Decision Support System

Recent developments in electric vehicle technology have lead to an increase in the use of electric vehicles. With the increase in the use of electric vehicles, it is necessary to secure the information and money flow in the process from production to consumption. In this study, an energy ecosystem in the Ethereum Blockchain network, which records all processes from the generation of electricity to the end user, is designed. Furthermore, this study includes energy producers, consumers, distributors, dealers, electric charge station and electric vehicle users. Transactions between users are provided using smart contracts. Smart contracts eliminate third-party contacts and all transactions with the decentralized application created are recorded on the Blockchain network. Recorded transactions are maintained in accordance with the principles of confidentiality, integrity and availability through Blockchain and smart contracts. In the application developed with the use of smart contracts, the user can access information such as location, price list, payment type, charging mode, charging type and plug types of the related charging stations. PROMETHEE, which is a multi-criteria decision-making method, is used in case there is more than one offer suitable for a user request. In this method, the weights required for the criteria are determined according to the profile of a user.